Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh trang » thanh trung, canh tranh, hanh trinh
cong thanh » dong thanh, cong trinh, truong thanh
hoc thieu » toc thieu, hoc hien
trang cua » tranh cua, tang cua, trung cua
cua nhung » va nhung
cong tan » cong tac, cong san, cong ty
toan cau » toan cao, toan ban, toan tap

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 - hanh trang cua nhung ((cong tan) or (cong thanh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh trang cua nhung ((cong tan) OR (cong thanh)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh trang cua nhung ((cong tan) or (cong thanh)) toan cau*.