Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
phong hung » phong nhung, phuong nhung, phong chong
hoc thieu » toc thieu, hoc hien
trinh han » trinh quan
han phong » han phuong, hai phong, van phong
hung manh » nhung manh, hung anh, tung manh
ho chieu » theo chieu, doi chieu, mot chieu
toan tap » toan ban
toan cao » toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tang - canh trinh han phong hung manh ((toan tap) OR (toan cao))~.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tang - canh trinh han phong hung manh ((toan tap) or (toan cao))*.