Perhaps you should try some spelling variations:
tai nguoi » tay nguoi, tac nguoi, loai nguoi
nguoi san » nguoi tay, nguoi dao, nguoi ma
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
hanh de » hanh ve
cua tre » cuu tre, cua triet, dua tren
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
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 sac ky nang xa hoi. hieu ve tai nguoi san ((hanh de) OR (hanh kem)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu ve tai nguoi san ((hanh de) OR (hanh kem)) ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. hieu ve tai nguoi san ((hanh de) OR (hanh kem)) ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. hieu ve tai nguoi san ((hanh de) OR (hanh kem)) ((cua tre) or (cua te))*.