Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
cau tren » dau tren, ca tren, cau treo
lang mai » lang dai, lang hai, lang man
hanh vii » hanh voi, hanh va, hanh noi
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cu tren » tu tren, dua tren
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
ky lang » ky nang, ky dang, ky tang
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 sach ky lang mai hoi. hieu ve chat xuc va ((hanh vii) or (hanh vi)) ((cau tren) or (cu tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang mai hoi. hieu ve chat xuc va ((hanh vii) OR (hanh vi)) ((cau tren) OR (cu tren)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang mai hoi. hieu ve chat xuc va ((hanh vii) or (hanh vi)) ((cau tren) or (cu tren))*.