Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
lang ha » long ha
hieu vu » hieu va, hieu ve, hieu su
xuc van » duc van, luc van, vuc van
van anh » van thanh, tuan anh, van minh
vu cam » vu cham, vu cao, va cam
anh vi » hanh vi, anh va, anh ve
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: so sach ty ((nang xa) or (lang ha)) hoi. hieu vu cam xuc van anh vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty ((nang xa) OR (lang ha)) hoi. hieu vu cam xuc van anh vi cau tren.
• Adding a wildcard symbol may retrieve word variants: so sach ty ((nang xa) or (lang ha)) hoi. hieu vu cam xuc van anh vi cau tren*.