Perhaps you should try some spelling variations:
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
van tuan » van quan, van ban, anh tuan
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
chuc te » thuc te, chuc ke, chuc theo

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

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