Perhaps you should try some spelling variations:
cham tuc » nham thuc, pham thuc, tham thuc
hanh vai » hanh vi, hanh va, hanh tai
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, tu cach
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
tuc va » thuc va, truc va, tuc xa
vai su » va su, van su, lai su

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) or (te sach)) ky nang xa hoi. hieu ve cham tuc va hanh vai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang xa hoi. hieu ve cham tuc va hanh vai su triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang xa hoi. hieu ve cham tuc va hanh vai su triet*.