Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hanh ki » hanh vi, hanh ky, hanh kien
va hanh » van hanh, va thanh, va danh
cao suc » cao su, cao duc
sach tu » sach thu, cach tu, sach ty
nang xa » nang x, lang xa, nang ma
dao tuc » dao duc
ki su » ky su

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach tu) or (sach y)) nang xa hoi. lieu va ((dao tuc) or (cao suc)) va hanh ki su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach tu) OR (sach y)) nang xa hoi. lieu va ((dao tuc) OR (cao suc)) va hanh ki su triet.
• Adding a wildcard symbol may retrieve word variants: su ((sach tu) or (sach y)) nang xa hoi. lieu va ((dao tuc) or (cao suc)) va hanh ki su triet*.