Perhaps you should try some spelling variations:
thieu sach » chieu sach, hieu cach, theo sach
thien hach » thien thanh, hien hanh
anh truong » manh truong, anh thuong, anh trong
truong cam » truong cao, truong ca, truong ham
hung cong » nhung cong, hung cuong, phung cong
cong bang » cuong bang, dong bang, hong bang
bang khan » bang nhan, bang thanh, dang khanh
cam hung » cac chung, cam nang, van hung
khan ap » khan cap, han ap, khan dam

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) or (thien hach)) - anh truong cam hung cong bang khan ap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sach) OR (thien hach)) - anh truong cam hung cong bang khan ap*.