Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
te sach » toc sach
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
hieu va » hieu qua
va hanh » van hanh, va thanh, va danh
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (su sach)) ky nang ma hoi. ((hieu va) or (lieu va)) cham xuc va hanh vi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (su sach)) ky nang ma hoi. ((hieu va) OR (lieu va)) cham xuc va hanh vi cua vat.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (su sach)) ky nang ma hoi. ((hieu va) or (lieu va)) cham xuc va hanh vi cua vat*.