Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
thanh lap » thanh san, phan lap, thanh hai
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
cham duc » pham duc, cham soc, pham duy
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma

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 nang xa hoi. hieu van cham duc tan ((thanh lap) or (hanh kem)) chau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu van cham duc tan ((thanh lap) OR (hanh kem)) chau triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu van cham duc tan ((thanh lap) or (hanh kem)) chau triet*.