Perhaps you should try some spelling variations:
tranh manh » tran manh, tranh minh, tran minh
hung huong » nhung huong, hung vuong, dung huong
huong tinh » khuong tinh, thuong tinh, duong tinh
thiet yeu » thiet ke, theo yeu
manh hung » anh huong
yeu tinh » yeu tin, lieu tinh, kieu tinh
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: thiet yeu tinh - canh tranh manh hung huong tinh ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thiet yeu tinh - canh tranh manh hung huong tinh ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: thiet yeu tinh - canh tranh manh hung huong tinh ((toan cau) or (toan ban))*.