Perhaps you should try some spelling variations:
su triet » su tien, ve triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
su viet » so viet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ve nam » he nam, va nam, le nam
nam tu » nam thu, nam thuc
ca dan » cac dan, ca dao
dan va » doan va, dan ca, ban va
tu ca » tu cac, tu cua, tu can

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 ky nang xa hoi. hieu ve nam tu ca dan va ((su triet) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu ve nam tu ca dan va ((su triet) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu ve nam tu ca dan va ((su triet) or (su viet))*.