Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
thi hang » thi hanh, thi nang, thi hong
chieu tu » chieu tro, lieu tu, chu tu
van hanh » van thanh, ban hanh, van anh
cau tren » cu tren, dau tren, ca tren
ty nang » ky nang, ty xang, ty hang
xuc van » duc van, luc van, vuc van
tu cam » tu cham, tu cac, tu nam
vi cau » va cau, ve cau, di cau

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 ((ty nang) or (thi hang)) xa hoi. chieu tu cam xuc van hanh vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ((ty nang) OR (thi hang)) xa hoi. chieu tu cam xuc van hanh vi cau tren.
• Adding a wildcard symbol may retrieve word variants: toc sach ((ty nang) or (thi hang)) xa hoi. chieu tu cam xuc van hanh vi cau tren*.