Perhaps you should try some spelling variations:
thien van » thi van
cham xuc » cam xuc, chat xuc, cham soc
va thieu » va thiet, va hieu, va tieu
su sach » so sach, vu sach
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
van mai » van hai, van ai, ban mai
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((ky lang) or (ky dang)) xa hoi. ((hieu ve) or (thien van)) cham xuc va van mai va thieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky lang) OR (ky dang)) xa hoi. ((hieu ve) OR (thien van)) cham xuc va van mai va thieu.
• Adding a wildcard symbol may retrieve word variants: su sach ((ky lang) or (ky dang)) xa hoi. ((hieu ve) or (thien van)) cham xuc va van mai va thieu*.