Perhaps you should try some spelling variations:
thanh trung » thanh tung
phai nhuong » phan thuong, pham thuong, pham chuong
tien manh » tien anh, tien thanh, tieng anh
dien anh » tieng anh, dien dan
ha nhung » hoa nhung, hay nhung, pha nhung
cong tam » cong tac, cong tan, cong nam
tam toan » tap toan, tam than, pham 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: hoc ((dien anh) or (tien manh)) - thanh trung ((ha nhung) or (phai nhuong)) cong tam toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dien anh) OR (tien manh)) - thanh trung ((ha nhung) OR (phai nhuong)) cong tam toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((dien anh) or (tien manh)) - thanh trung ((ha nhung) or (phai nhuong)) cong tam toan cao*.