Perhaps you should try some spelling variations:
dieu hien » dieu kien, bieu hien, dien bien
hanh vai » hanh vi, hanh va, hanh tai
va hanh » van hanh, va thanh, va danh
cua tuc » cua duc, cua thuoc, luat tuc
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
cac lo » cac lop, cac co, cac bo
cua tu » cua su, cua cu, cua te
su sac » su sach, su cac, su xac
lo va » lo van, lao va, ly va

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 lang xa hoi. ((dieu khien) or (dieu hien)) cac lo va hanh vai ((cua tu) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky lang xa hoi. ((dieu khien) OR (dieu hien)) cac lo va hanh vai ((cua tu) OR (cua tuc)).
• Adding a wildcard symbol may retrieve word variants: su sac ky lang xa hoi. ((dieu khien) or (dieu hien)) cac lo va hanh vai ((cua tu) or (cua tuc))*.