Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
chieu xanh » chieu sach, chieu sang, chieu tinh
manh trung » manh tung, thanh trung, manh hung
trong dan » trong dang, trong san, trong tan
trung ha » trung hoc, trung tam, trung cap
ha dung » hai dung, kha dung, nha dung
dan van » dang van, doan van, dao van

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) or (chieu xanh)) - manh trung ha dung trong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu nganh) OR (chieu xanh)) - manh trung ha dung trong dan van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu nganh) or (chieu xanh)) - manh trung ha dung trong dan van ban*.