Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
trung phat » truong phat, trong phat, trung nhat
trung phan » trung thanh, trung ha, dung phan
hoc hieu » hoc thieu, hoc hien, doc hieu
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, than cap

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 - thanh ((trung phat) OR (trung phan)) thong ((cong tan) or (huong dan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - thanh ((trung phat) OR (trung phan)) thong ((cong tan) OR (huong dan)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu nganh - thanh ((trung phat) OR (trung phan)) thong ((cong tan) or (huong dan)) than cau".
• Adding a wildcard symbol may retrieve word variants: hoc hieu nganh - thanh ((trung phat) OR (trung phan)) thong ((cong tan) or (huong dan)) than cau*.