Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
ve cham » ve chat, vu cham, ve chim
va cham » va chat, va tham
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
di va » dai va, di vao, doi va
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang xa hoi. hieu ((ve cham) or (va cham)) thuc va hanh di va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. hieu ((ve cham) OR (va cham)) thuc va hanh di va thiet.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu ((ve cham) or (va cham)) thuc va hanh di va thiet*.