Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
van thanh » ban thanh, van tuan
va triet » va thiet, va trien, ve triet
cham luc » cham soc, nhan luc, cham cuu
su triet » su viet, su tien, ve triet
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach ty, sach kem
luc van » luoc van, luu van, duc van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((sach ky) OR (sach y)) tang xa hoi. hieu ve cham luc van thanh vai ((va triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((sach ky) OR (sach y)) tang xa hoi. hieu ve cham luc van thanh vai ((va triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((sach ky) OR (sach y)) tang xa hoi. hieu ve cham luc van thanh vai ((va triet) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: hoc ((sach ky) OR (sach y)) tang xa hoi. hieu ve cham luc van thanh vai ((va triet) or (su triet))*.