Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
manh toan » thanh toan, anh tuan, tinh toan
hoc hieu » hoc thieu, hoc hien, doc hieu
van tan » van tuan, van ban, van tai

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 - hanh ((hang va) or (trung cua)) nhung cong ((manh toan) or (van tan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - hanh ((hang va) OR (trung cua)) nhung cong ((manh toan) OR (van tan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu nganh - hanh ((hang va) or (trung cua)) nhung cong ((manh toan) or (van tan)) cau*.