Perhaps you should try some spelling variations:
thien van » thi van
thu sach » tu sach, thuat sach, thuoc sach
cau phuc » cau truc, chau phu, huu phuc
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cau luc » cau truc
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 ky nang xa hoi. ((thien van) or (lieu va)) ((cau luc) OR (cau phuc)) va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. ((thien van) OR (lieu va)) ((cau luc) OR (cau phuc)) va hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang xa hoi. ((thien van) or (lieu va)) ((cau luc) OR (cau phuc)) va hanh vi cua tre*".