Perhaps you should try some spelling variations:
hieu tinh » chieu tinh, lieu tinh, hieu binh
kieu tinh » lieu tinh, trieu tinh, diep tinh
manh hung » anh huong
chua nang » chuc nang, kha nang, cuu nang
chua xang » chuc nang, chu bang, chua dong
cong vang » cong lang, cong quang, cong ngang
vang van » dang van, tang van, lang van

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 tinh) or (kieu tinh)) - manh hung ((chua nang) OR (chua xang)) cong vang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu tinh) OR (kieu tinh)) - manh hung ((chua nang) OR (chua xang)) cong vang van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu tinh) or (kieu tinh)) - manh hung ((chua nang) OR (chua xang)) cong vang van ban".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu tinh) or (kieu tinh)) - manh hung ((chua nang) OR (chua xang)) cong vang van ban*.