Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
tu sac » tu sach, tu cac, tu bac
tu san » thu san, tu ban, tu can
cam tu » cam thu, dam tu, tam tu
nam tu » nam thu, nam thuc
va dan » ca dan, va dao, va dau
dan va » doan va, dan ca, ban va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) OR (tu san)) ky nang xa hoi. hieu ve ((cam tu) or (nam tu)) va dan va su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky nang xa hoi. hieu ve ((cam tu) OR (nam tu)) va dan va su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu san)) ky nang xa hoi. hieu ve ((cam tu) or (nam tu)) va dan va su triet*".