Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
hieu va » lieu va, hieu qua
ly hang » ly quang
ly nang » ky nang, ly vang, ly quang
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua cu, cua te
cua su » qua su

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

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