Perhaps you should try some spelling variations:
quyen tai » nguyen tai, truyen tai, luyen thi
xuyen tai » xuyen tac, nguyen tai, truyen tai
cong cong » cong dong, trong cong, dung cong
cac chu » cac thu, cac che, cac khu
co hang » cho hang, co chang, co hoang
hang ly » huong ly
ty thuc » ty thuoc, tu thuc, tri thuc
y thuc » y thuoc, _ thuc, a thuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((quyen tai) or (xuyen tai)) cac chu đe co hang ly ((y thuc) OR (ty thuc)) cong cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((quyen tai) OR (xuyen tai)) cac chu đe co hang ly ((y thuc) OR (ty thuc)) cong cong.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((quyen tai) or (xuyen tai)) cac chu đe co hang ly ((y thuc) OR (ty thuc)) cong cong".
• Adding a wildcard symbol may retrieve word variants: ((quyen tai) or (xuyen tai)) cac chu đe co hang ly ((y thuc) OR (ty thuc)) cong cong*.