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