Perhaps you should try some spelling variations:
dang mam » dang nam, dang mau, dang mat
hanh tai » thanh tai, hang tai, hinh tai
duc tre » duoc tren, duc tien
ky dang » ky nang, ky danh
mam hoi » mam hoai, nam hoi, mai hoi
hieu ve » hieu va, hieu van
cam luc » cau luc
han tai » hang tai, nhan tai, van tai
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky dang mam hoi. hieu ve ((cam luc) or (cam xuc)) va ((hanh tai) or (han tai)) duc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky dang mam hoi. hieu ve ((cam luc) OR (cam xuc)) va ((hanh tai) OR (han tai)) duc tre.
• Adding a wildcard symbol may retrieve word variants: su sac ky dang mam hoi. hieu ve ((cam luc) or (cam xuc)) va ((hanh tai) or (han tai)) duc tre*.