Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
nhung huong » nhung tuong, nhung cong, nhung dung
hanh truong » hanh trong, anh truong, manh truong
truong cua » truong ca, truong quan, truong cao
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

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 - hanh truong cua ((nhung huong) or (nhung phuong)) dan ((toan cau) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo yeu tinh - hanh truong cua ((nhung huong) OR (nhung phuong)) dan ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo yeu tinh - hanh truong cua ((nhung huong) or (nhung phuong)) dan ((toan cau) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: theo yeu tinh - hanh truong cua ((nhung huong) or (nhung phuong)) dan ((toan cau) OR (toan cao))*.