Perhaps you should try some spelling variations:
cuu tre » cua tre, cau tren, cau treo
hanh va » hang va
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
lai hoa » dai hoa, loai hoc
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky lang ((mai hoi) or (lai hoa)). hieu ve cac xuc va ((hanh vi) or (hanh va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky lang ((mai hoi) OR (lai hoa)). hieu ve cac xuc va ((hanh vi) OR (hanh va)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky lang ((mai hoi) or (lai hoa)). hieu ve cac xuc va ((hanh vi) or (hanh va)) cuu tre*.