Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoang manh » hoang minh, hoang anh, hoang xanh
hoc thieu » toc thieu, hoc hien
cua tong » cua cong, cua dong, cua nong
cua dang » cua cong, cua ban
cong tac » cong ty
tran cao » toan cao, tran chau, trang cho

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 - hoang manh ((cua tong) or (cua dang)) ((cong tac) or (cong san)) tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hoang manh ((cua tong) OR (cua dang)) ((cong tac) OR (cong san)) tran cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hoang manh ((cua tong) or (cua dang)) ((cong tac) or (cong san)) tran cao*.