Perhaps you should try some spelling variations:
su triet » su viet, su tien
nam truc » nam truoc, nam thuc, nam trung
ve triet » va trien
hanh ve » hanh va, hanh kem
hieu ve » hieu va, hieu van
truc va » thuc va, thuc vat, trung va
nang xa » nang x, lang xa, nang ma
sai ky » sac ky
ve nam » he nam, va nam, le nam
te sai » te tai, te bai, te lai

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

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