Perhaps you should try some spelling variations:
sang mai » sang ma, sang tai, lang mai
cham xuc » cam xuc, chat xuc, cham soc
hanh tai » thanh tai, hang tai, han tai
hanh vii » hanh voi, hanh va, hanh noi
cu tren » tu tren, dua tren
ky sang » ky nang, ky dang, ky tang
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va

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 sang mai hoi. hieu ve cham xuc va ((((hanh vii) or (hanh tai))) or (hanh vi)) cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang mai hoi. hieu ve cham xuc va ((((hanh vii) OR (hanh tai))) OR (hanh vi)) cu tren.
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang mai hoi. hieu ve cham xuc va ((((hanh vii) or (hanh tai))) or (hanh vi)) cu tren*.