Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hanh dai » hanh tai, hanh dao, vanh dai
hoc sach » hoc sinh, hoc cac, hoc anh
vu cham » va cham, vu kham, tu cham
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
xuc va » duc va, tuc va, luc va
ve cam » ve cham, ve cac, va cam

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 (hoc sach)) ky nang xa hoi. hieu ((ve cam) or (vu cham)) xuc va hanh dai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (hoc sach)) ky nang xa hoi. hieu ((ve cam) OR (vu cham)) xuc va hanh dai cua viet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (hoc sach)) ky nang xa hoi. hieu ((ve cam) or (vu cham)) xuc va hanh dai cua viet*.