Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu nganh » hiem ngan, hieu manh, nghiep nganh
vien nganh » vien thanh
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
va tong » va tuong, va trong, va cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu nganh) or (vien nganh)) - thanh trung ((va tong) or (va thong)) cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu nganh) OR (vien nganh)) - thanh trung ((va tong) OR (va thong)) cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu nganh) or (vien nganh)) - thanh trung ((va tong) or (va thong)) cong dan toan cao*.