Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va hanh » va thanh, va danh, ban hanh
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
ve cham » va cham, ve chat, vu cham

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 nang xa hoi. hieu ve cham xuc ((va hanh) OR (van hanh)) vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (te sach)) ky nang xa hoi. hieu ve cham xuc ((va hanh) OR (van hanh)) vai cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (te sach)) ky nang xa hoi. hieu ve cham xuc ((va hanh) OR (van hanh)) vai cua viet".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) ky nang xa hoi. hieu ve cham xuc ((va hanh) OR (van hanh)) vai cua viet*.