Perhaps you should try some spelling variations:
chau phuc » chau phu, cau phuc, khac phuc
thu sach » thuat sach, thuoc sach, thu hoach
tu sach » su sach, te sach, tu cach
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
phuc va » phuc vu, thuc va, chuc va
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu van
cao hoi » cau hoi, co hoi, cao hoc
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: ((tu sach) OR (thu sach)) ky nang cao hoi. ((hieu ve) or (hieu va)) chau phuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang cao hoi. ((hieu ve) OR (hieu va)) chau phuc va hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) ky nang cao hoi. ((hieu ve) or (hieu va)) chau phuc va hanh vi cua tre*".