Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh hai » thanh phan, thanh hoa, thanh san
lang van » dang van, tang van, hoang van
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, su sach, te sach
cao suc » cao su, cao duc
hieu va » lieu va, hieu qua
suc va » duc va, tuc va, luc va
va cao » va cac, va co, va dao
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat sach)) _ lang van hoa. hieu va cao suc va ((hanh tai) OR (thanh hai)) cua te~.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat sach)) _ lang van hoa. hieu va cao suc va ((hanh tai) or (thanh hai)) cua te*.