Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
trinh vat » trinh van, trinh luat, sinh vat
trinh han » trinh quan
trinh ve » trinh he, trinh va, trinh vi
dan toan » van toan, dan than, manh toan
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 tieu xanh - hanh ((((trinh vat) or (trinh han))) or (trinh ve)) nhung huong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh ((((trinh vat) OR (trinh han))) OR (trinh ve)) nhung huong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh ((((trinh vat) or (trinh han))) or (trinh ve)) nhung huong dan toan cao*.