Perhaps you should try some spelling variations:
hieu tinh » chieu tinh, lieu tinh, kieu tinh
chau tinh » cuu tinh, ha tinh, cua tinh
manh hung » anh huong
hung chua » cung chua, hung chu, chung chuan
chua nang » chuc nang, chua xang, kha nang
nang cong » nang song, dang cong, bang cong
cong vang » cong lang, cong quang, cong ngang
vang toan » van toan, dang toan, quang toan
toan ban » van ban

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 (chau tinh)) - manh hung chua nang cong vang toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu tinh) OR (chau tinh)) - manh hung chua nang cong vang toan ban.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu tinh) or (chau tinh)) - manh hung chua nang cong vang toan ban*.