Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hang tai » hang va, dung tai
tai cua » thai cua, tai cuc, tri cua
va hang » van hang, va nang, va lang
cau luc » cau truc, cau phuc
cam luc » cam xuc
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
te san » te ban, ke san, tu san
te sac » te sach, te cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) or (te san)) ky lang xa hoi. hieu qua ((cam luc) OR (cau luc)) va hang tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te san)) ky lang xa hoi. hieu qua ((cam luc) OR (cau luc)) va hang tai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) or (te san)) ky lang xa hoi. hieu qua ((cam luc) OR (cau luc)) va hang tai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te san)) ky lang xa hoi. hieu qua ((cam luc) OR (cau luc)) va hang tai cua triet*.