Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
tru nang » tra nang, tri nang, truc nano
van hanh » van thanh, ban hanh, van anh
tu nong » tu dong, tu cong, tu tong
xuc van » duc van, luc van, vuc van
luu tre » luu tru, cuu tre, luy tre
va cam » va cham, va cac, va cao
vi luu » vi lua

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 ((tu nong) or (tru nang)) xa hoi. lieu va cam xuc van hanh vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((tu nong) OR (tru nang)) xa hoi. lieu va cam xuc van hanh vi luu tre*.