Perhaps you should try some spelling variations:
doi trung » do trung, doi trong, doan trung
quen vang » quan van, que van, que lang
bai quen » bai luyen, dai quyen, hai quan
tac dung » sach dung, xay dung, tin dung
thuoc mo » thuoc moi, thuoc ma, thuoc bo
dung tri » dung tai, dung tren, dung sai
tri quen » tri quan, thoi quen, tri huyen
quoc co » quoc cao, quoc cho, duoc co

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( nhung bai quen vang. tac dung thuoc mo ) or ( dung tri quen vang. doi trung quoc co ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung bai quen vang. tac dung thuoc mo ) OR ( dung tri quen vang. doi trung quoc co )).
• Adding a wildcard symbol may retrieve word variants: (( nhung bai quen vang. tac dung thuoc mo ) or ( dung tri quen vang. doi trung quoc co ))*.