Perhaps you should try some spelling variations:
thanh phuong » thanh huong, thanh chuong, khanh phong
phuong chan » phuong cham, phuong thanh, phuong phap
theo chieu » theo tieu, ho chieu, theo chu
hoc thuyet » hoc chuyen
chan dung » van dung, dan dung
dung cong » dung trong
cong sang » cong san, cong lang, cong vang
sang than » cang thang, dang thanh, sang tao
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (hoc thuyet)) tach - thanh phuong chan dung cong sang than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (hoc thuyet)) tach - thanh phuong chan dung cong sang than cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (hoc thuyet)) tach - thanh phuong chan dung cong sang than cau*.