Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
van cham » van tham, va cham, van pham
van chat » cao chat
sach ky » sac ky, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
thai va » thai van
xuc va » duc va, tuc va, luc 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: tu ((sach ky) or (sach y)) nang xa hoi. hieu ((van cham) OR (van chat)) xuc va hanh thai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang xa hoi. hieu ((van cham) OR (van chat)) xuc va hanh thai va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sach y)) nang xa hoi. hieu ((van cham) OR (van chat)) xuc va hanh thai va thiet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) nang xa hoi. hieu ((van cham) OR (van chat)) xuc va hanh thai va thiet*.