Perhaps you should try some spelling variations:
tu tieng » luc tieng, tu tuong, tu trong
van hanh » van thanh, ban hanh, van anh
sach vu » sach va, sach uu, sach xu
su hien » su kien, su tien, thu hien
hanh ve » hanh vi, hanh va, hanh kem
xuc van » duc van, luc van, vuc van
cao xuc » cam xuc, cao duc, cao suc
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach ty
va cao » va cac, va co, va dao
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach vu) OR (sach tu)) nang x hoi. hieu va cao xuc van hanh ve ((su hien) or (tu tieng))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach vu) OR (sach tu)) nang x hoi. hieu va cao xuc van hanh ve ((su hien) OR (tu tieng)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach vu) OR (sach tu)) nang x hoi. hieu va cao xuc van hanh ve ((su hien) or (tu tieng))".
• Adding a wildcard symbol may retrieve word variants: te ((sach vu) OR (sach tu)) nang x hoi. hieu va cao xuc van hanh ve ((su hien) or (tu tieng))*.