Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
lang van » dang van, tang van, hoang van
cham xuc » cam xuc, chat xuc, cham soc
so sach » so sanh, bo sach, co sach
hieu ve » hieu van
xuc van » duc van, luc van, xuc ban
hieu va » lieu va, hieu qua
vi cua » vai cua, di cua
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: so sach y ((nang x) or (lang van)) hoi. ((hieu ve) or (hieu va)) cham xuc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y ((nang x) OR (lang van)) hoi. ((hieu ve) OR (hieu va)) cham xuc van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: so sach y ((nang x) or (lang van)) hoi. ((hieu ve) or (hieu va)) cham xuc van hanh vi cua te*.