Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
tham xuc » tham nuoc, tham thuc, pham duc
va hanh » van hanh, va thanh, va danh
va tham » van tham, va cham, va thanh
hieu va » lieu va, hieu qua
ly hang » ly quang
ly vang » ly van, ly quang
ly nang » ky nang, ly quang, may nang
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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 vang))) or (ly hang)) xa hoi. hieu va tham xuc va hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((((ly nang) OR (ly vang))) OR (ly hang)) xa hoi. hieu va tham xuc va hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: thu sach ((((ly nang) or (ly vang))) or (ly hang)) xa hoi. hieu va tham xuc va hanh vi cua tu*.