Perhaps you should try some spelling variations:
nguoi san » nguoi tay, nguoi ma
nguoi dao » nguoi tay
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
hanh de » hanh ve, hanh kem
cua tre » cuu tre, cua triet, dua tren
su cac » tu cac, su cao, su can
ve tai » te tai, de tai, le tai
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang xa hoi. hieu ve tai ((nguoi san) OR (nguoi dao)) hanh de ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang xa hoi. hieu ve tai ((nguoi san) OR (nguoi dao)) hanh de ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky nang xa hoi. hieu ve tai ((nguoi san) OR (nguoi dao)) hanh de ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: su cac ky nang xa hoi. hieu ve tai ((nguoi san) OR (nguoi dao)) hanh de ((cua tre) or (cua te))*.