Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
trung cua » truong cua, trung tuan, trung cap
tuong cua » truong cua, huong cua, thong cua
phan cong » thanh cong
toc hieu » toc thieu, doc hieu, hoc thieu
dan than » dan chan, ban than, dan toan
van than » van thanh, van thang, van tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu nganh - thanh ((trung cua) or (tuong cua)) phan cong ((dan than) OR (van than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu nganh - thanh ((trung cua) OR (tuong cua)) phan cong ((dan than) OR (van than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc hieu nganh - thanh ((trung cua) or (tuong cua)) phan cong ((dan than) OR (van than)) cau".
• Adding a wildcard symbol may retrieve word variants: toc hieu nganh - thanh ((trung cua) or (tuong cua)) phan cong ((dan than) OR (van than)) cau*.