Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
cham duc » pham duc, cham soc, pham duy
va triet » va thiet, va trien, ve triet
hanh dao » lanh dao, thanh dat, thanh dam
tan hanh » tan thanh, tang hanh, toan hanh
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
ve cham » va cham, ve chat, vu cham

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

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