Perhaps you should try some spelling variations:
sach tu » sach thu, cach tu, sach uu
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
sach ty » sach y, sach thu, xach tay
cac xuc » cam xuc, cac nuoc, chat xuc
dinh vi » dinh ve, dinh viet, dinh tri
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
cua te » cua tu

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

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