Perhaps you should try some spelling variations:
quyen tap » tuyen tap, luyen tap, quyen cap
cong cong » trong cong, dung cong, dang cong
cac khoi » cac thoi, cac khoan, cach thoi
hoai thu » doi thu
cac khu » cac thu, cac kieu
le hoai » le hoi, le hai, le hoang
ban le » ban ve
dong » dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: quyen tap ((cac khu) OR (cac khoi)) đe co ban le hoai thu ((cong cong) or (cong dong))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: quyen tap ((cac khu) OR (cac khoi)) đe co ban le hoai thu ((cong cong) OR (cong dong)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "quyen tap ((cac khu) OR (cac khoi)) đe co ban le hoai thu ((cong cong) or (cong dong))".
• Adding a wildcard symbol may retrieve word variants: quyen tap ((cac khu) OR (cac khoi)) đe co ban le hoai thu ((cong cong) or (cong dong))*.