Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
manh tran » manh toan, manh tuan, canh tranh
tran tran » tan tran, tran tuan, tran tan
tran hung » tran hong, tran quang, tran hoang
cong tac » cong ty
toan tap » toan ban
toan cao » toan ban

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