Perhaps you should try some spelling variations:
truong quoc » trung quoc, truong hoc
nhung loi » nhung bai, nhung bi, nhung gi
loi quyet » toi quyet, bi quyet, loi que
quen vang » quan van, que van, que lang
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 mo » uoc mo, quoc co, quoc lo

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

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