Perhaps you should try some spelling variations:
thien van » thi van
cau phuc » cau truc, chau phu, huu phuc
sach ky » sac ky, sach y, sach kem
sach ty » sach y, sach tu, sach thu
phuc va » phuc vu, thuc va, chuc va
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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) or (sach ty)) nang x hoi. ((thien van) or (lieu va)) cau phuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ky) OR (sach ty)) nang x hoi. ((thien van) OR (lieu va)) cau phuc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: thu ((sach ky) or (sach ty)) nang x hoi. ((thien van) or (lieu va)) cau phuc va hanh vi cua tre*.