Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hoc sac » hoc sach, hoc cac, hoc mac
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
van anh » van thanh, tuan anh, van minh
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac
anh vi » hanh vi, anh va, anh ve
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: hoc sac ky nang ma hoi. hieu ve cac xuc van anh vi ((cua tu) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sac ky nang ma hoi. hieu ve cac xuc van anh vi ((cua tu) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: hoc sac ky nang ma hoi. hieu ve cac xuc van anh vi ((cua tu) or (su triet))*.