Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
lang van » dang van, tang van, hoang van
cao suc » cao su, cao duc
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y ((nang xa) or (lang van)) hoi. hieu ve ((cam duc) or (cao suc)) ban thanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((nang xa) OR (lang van)) hoi. hieu ve ((cam duc) OR (cao suc)) ban thanh dai cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach y ((nang xa) or (lang van)) hoi. hieu ve ((cam duc) or (cao suc)) ban thanh dai cua te*.