Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
thanh tung » thanh cong
tuan thong » toan thong, tran thong, tuan phong
thong cong » trong cong, tong cong, thong thong
tung tuan » trung tuan, hung tuan, quang tuan
doc hieu » toc thieu, hoc thieu, hoc hien
tan than » tan thanh, ban than, tam than

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu nganh - thanh tung tuan thong cong ((tan than) or (tan tran)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu nganh - thanh tung tuan thong cong ((tan than) OR (tan tran)) cau*.