Perhaps you should try some spelling variations:
thuong doan » phuong doan, huong dan, thuong han
phuong loan » phuong lan, huong loan, phuong doan
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tang » hanh trang, anh tang, hanh mang
ho chieu » theo chieu, hoc thieu, doi chieu
toan cau » toan cao, toan ban, toan tap
tang va » trang va, tang van, thang va
va dung » van dung, va duong, vat dung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - hanh tang va dung ((thuong doan) or (phuong loan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh tang va dung ((thuong doan) OR (phuong loan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh tang va dung ((thuong doan) or (phuong loan)) toan cau*.