search-1

# Previously Seen Queries

- can i cancel a refund
- how can i cancel an order
- cancel my account
- can i dropship using paypal
- paypal payments
- paypal providers


## Prefix search
Input: "can"
Output: ["cancel my account", "can i cancel a refund", "can i dropship using paypal"]

Input: "cancel"
Output: ["cancel my account"]

Input: "dropship"
Output: []


## Add black list
No 'paypal' queries allowed:

Input: "can"
Output: ["cancel my account", "can i cancel a refund"]


## Add keyword search
A keyword can appear anywhere in the query

Input: "cancel"
Output: ["cancel my account", "can i cancel a refund", "how can i cancel an order"]

Input: "can"
Output: ["can i cancel a refund", "how can i cancel an order"]


## Rank prefix matches higher
Both prefix and keyword search should be performed, with prefix ranking higher

Input: "cancel"
Output: ["cancel my account", "can i cancel a refund", "how can i cancel an order"]