Perhaps you should try some spelling variations:
cuoi nguoi » cua nguoi, cho nguoi, con nguoi
nguoi san » nguoi tay, nguoi dao, nguoi ma
san hanh » san thanh, ban hanh, van hanh
dua tren » dung tren
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
ve cuoi » le cuoi, ve cuoc, ve tuoi
cuu tre » cua tre, cau tren, cau treo
su sac » su sach, su xac
su cac » tu cac, su cao, su can

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) or (su cac)) ky nang cao hoi. hieu ve cuoi nguoi san hanh vi ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su cac)) ky nang cao hoi. hieu ve cuoi nguoi san hanh vi ((dua tren) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: ((su sac) or (su cac)) ky nang cao hoi. hieu ve cuoi nguoi san hanh vi ((dua tren) or (cuu tre))*.