Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
chinh chau » chinh cau, chinh cho, chinh phu
hoc thieu » toc thieu, hoc hien
tuong va » truong va, thuong va, luong va
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
tung va » trung va, dung va, vung va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - thanh ((tung va) or (tuong va)) cuong ((cong tan) OR (cong san)) chinh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh ((tung va) OR (tuong va)) cuong ((cong tan) OR (cong san)) chinh chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - thanh ((tung va) or (tuong va)) cuong ((cong tan) OR (cong san)) chinh chau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh ((tung va) or (tuong va)) cuong ((cong tan) OR (cong san)) chinh chau*.