Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
cam luc » cam xuc, cau luc
va hanh » van hanh, va thanh, va danh
tai duc » tai cuc, mai duc, tai du
duc tre » duoc tren, duc tien
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ma hoi » mai hoi, ma hoa, me hoi
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va

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) OR (xa hoi)). hieu ve cam luc va hanh tai duc tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky dang ((ma hoi) OR (xa hoi)). hieu ve cam luc va hanh tai duc tre".
• Adding a wildcard symbol may retrieve word variants: su sac ky dang ((ma hoi) OR (xa hoi)). hieu ve cam luc va hanh tai duc tre*.