Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
cong cong » cong dong, trong cong, dung cong
anh nang » ganh nang, anh bang, anh sang
anh dang » anh dong, anh dung, anh bang
cong rac » cong tac, cong cac, cong dac
rac tren » ran tren, tac tren, sach tren
tren may » tiet may

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu tinh) or (may tinh)) - ((anh nang) OR (anh dang)) cua cong cong rac tren may~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (may tinh)) - ((anh nang) OR (anh dang)) cua cong cong rac tren may.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu tinh) or (may tinh)) - ((anh nang) OR (anh dang)) cua cong cong rac tren may".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (may tinh)) - ((anh nang) OR (anh dang)) cua cong cong rac tren may*.