Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
hanh truong » hanh trong, anh truong, manh truong
truong cua » truong ca, truong quan, truong cao
nhung cong » dung cong, thong cong, hang cong
theo yeu » theo tieu, thiet yeu, theo chu
yeu tinh » yeu tin, lieu tinh, kieu tinh
dan toan » van toan, dan than, manh toan
toan cau » 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 cong) or (nhung phuong)) dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo yeu tinh - hanh truong cua ((nhung cong) OR (nhung phuong)) dan toan cau.
• Adding a wildcard symbol may retrieve word variants: theo yeu tinh - hanh truong cua ((nhung cong) or (nhung phuong)) dan toan cau*.