Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » cam xuc, chat xuc, pham duc
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu ve, hieu su
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
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: ((thu sach) or (thu hoach)) ky nang xa hoi. hieu vu ((cham xuc) OR (cham soc)) va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thu hoach)) ky nang xa hoi. hieu vu ((cham xuc) OR (cham soc)) va hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (thu hoach)) ky nang xa hoi. hieu vu ((cham xuc) OR (cham soc)) va hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (thu hoach)) ky nang xa hoi. hieu vu ((cham xuc) OR (cham soc)) va hanh vi cua tre*.