Perhaps you should try some spelling variations:
cuong cac » luong cac, cong cac, trong cac
cuon sac » cuon sach, cuong sau, cuoi cac
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
dan dai » dat dai, can dai, dan dat
ve dat » de dat, va dat, ve dao
va dan » ca dan, va dao, va dau
cua tu » cua tuc, cua su, cua cu
nuoc » quoc, duoc, ngoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((cuon sac) or (cuong cac)) ky lang xa hoi. hieu ve dat nuoc va dan dai ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((cuon sac) OR (cuong cac)) ky lang xa hoi. hieu ve dat nuoc va dan dai ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((cuon sac) or (cuong cac)) ky lang xa hoi. hieu ve dat nuoc va dan dai ((cua te) OR (cua tu))".
• Adding a wildcard symbol may retrieve word variants: ((cuon sac) or (cuong cac)) ky lang xa hoi. hieu ve dat nuoc va dan dai ((cua te) OR (cua tu))*.