Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
danh sai » dung sai, danh bat, danh dau
danh vai » danh va, doanh van, dang van
cham xuc » cam xuc, chat xuc, cham soc
lang van » dang van, tang van, hoang van
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
van hoi » van hoa, van hoc, van hoe
ky lang » ky nang, ky dang, ky tang
te sach » toc sach
ca viet » va viet, co viet, hoa viet
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: ((thu sach) or (te sach)) ky lang van hoi. hieu vu cham xuc va ((danh vai) OR (danh sai)) ca viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (te sach)) ky lang van hoi. hieu vu cham xuc va ((danh vai) OR (danh sai)) ca viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (te sach)) ky lang van hoi. hieu vu cham xuc va ((danh vai) OR (danh sai)) ca viet".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) ky lang van hoi. hieu vu cham xuc va ((danh vai) OR (danh sai)) ca viet*.