Perhaps you should try some spelling variations:
nang huong » nang thuong, nang luong, hang thuong
canh manh » lanh manh, canh tranh, cach mang
theo yeu » theo tieu, thiet yeu, theo chu
yeu tinh » yeu tin, lieu tinh, kieu tinh
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
than cap » khan cap, thanh lap, thanh cac
manh va » hanh va, anh va, minh va
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo yeu tinh - canh manh va nang huong dan ((((toan cau) OR (toan cao))) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo yeu tinh - canh manh va nang huong dan ((((toan cau) OR (toan cao))) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo yeu tinh - canh manh va nang huong dan ((((toan cau) OR (toan cao))) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: theo yeu tinh - canh manh va nang huong dan ((((toan cau) OR (toan cao))) or (than cap))*.