Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
hanh tang » anh tang, hanh mang, hanh tung
cua nhung » va nhung
theo toc » ho toc, thac toc, theo bo
toc sach » hoc sach, doc sach, thuoc sach
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: theo toc sach - ((hanh tang) or (hanh trang)) cua nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo toc sach - ((hanh tang) OR (hanh trang)) cua nhung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: theo toc sach - ((hanh tang) or (hanh trang)) cua nhung cong tac toan cau*.