Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cham xuc » chat xuc, cham soc, pham duc
van hanh » van thanh, ban hanh, van anh
cau tren » cu tren, dau tren, ca tren
co sach » bo sach, cuon sach, hoc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va hanh » va thanh, va danh, ban hanh
va cau » van cau, va cac, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach ky nang xa hoi. hieu van ((cham xuc) or (cam xuc)) ((va hanh) OR (van hanh)) va cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach ky nang xa hoi. hieu van ((cham xuc) OR (cam xuc)) ((va hanh) OR (van hanh)) va cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co sach ky nang xa hoi. hieu van ((cham xuc) or (cam xuc)) ((va hanh) OR (van hanh)) va cau tren".
• Adding a wildcard symbol may retrieve word variants: co sach ky nang xa hoi. hieu van ((cham xuc) or (cam xuc)) ((va hanh) OR (van hanh)) va cau tren*.