Perhaps you should try some spelling variations:
phuong dang » phuong dung, phuong dong, huong dang
cac phuong » cac truong
hoc thieu » toc thieu, hoc hien
tranh cac » trinh cac, thanh cac, tranh cai
dang tran » dang thanh, quang tran, hoang tran
quang cao » nang cao, quang nam
ho chieu » theo chieu, mot chieu, doi chieu

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) or (hoc thieu)) tinh - canh tranh cac phuong dang tran quang cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - canh tranh cac phuong dang tran quang cao.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - canh tranh cac phuong dang tran quang cao*.