Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
hanh lai » hanh lam, hanh tai, thanh lap
van hanh » van thanh, ban hanh, van anh
lang xa » lang ha, dang xay
lai cua » dai cua, hai cua, lai chau
cao duc » dao duc, cao suc, tao duoc
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
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 ((lang xa) OR (lang van)) hoi. lieu va ((cao duc) or (giao duc)) van hanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky ((lang xa) OR (lang van)) hoi. lieu va ((cao duc) OR (giao duc)) van hanh lai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky ((lang xa) OR (lang van)) hoi. lieu va ((cao duc) or (giao duc)) van hanh lai cua te*".