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

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 ma 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 ma hoi. hieu ve ((cam luc) OR (cam xuc)) va ((hanh tai) OR (han tai)) duc tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky dang ma 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 ma hoi. hieu ve ((cam luc) OR (cam xuc)) va ((hanh tai) or (han tai)) duc tre*.