Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
pham duy » pham duc
va triet » va thiet, va trien, ve triet
hang doi » hang di, hang loi, huong doi
cham duc » pham duc, cham soc, phan duc
va hang » van hang, va nang, va lang
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang xa hoi. hieu ve ((cham duc) or (pham duy)) va hang doi ((va triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. hieu ve ((cham duc) OR (pham duy)) va hang doi ((va triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. hieu ve ((cham duc) or (pham duy)) va hang doi ((va triet) or (su triet))*.