Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
van nhanh » van thanh, van hanh, van khanh
su triet » su viet, su tien, ve triet
duc van » duc va, duc tan, duc manh
tang ha » lang ha, tang ma, trung ha
cua tre » cua te, cuu tre, cua triet
dung ha » dung va, dung he, dung khoa
hieu ve » hieu va, hieu van
cao duc » dao duc, cao suc, giao duc
su tai » su thi, tu tai
tai ky » thai ky, trai ky, sai ky
ve cao » va cao, ve bao, ve cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su tai ky ((tang ha) or (dung ha)) hoi. hieu ve cao duc van nhanh thai ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su tai ky ((tang ha) OR (dung ha)) hoi. hieu ve cao duc van nhanh thai ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: su tai ky ((tang ha) or (dung ha)) hoi. hieu ve cao duc van nhanh thai ((cua tre) or (su triet))*.