Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hieu van » hieu va, thien van, lieu va
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
ky lang » ky nang, ky tang, tay lang
van cam » van nam, van lam, van cau
hoa hoi » khoa hoi, hoa hoc, hoa doi
ky dang » ky nang, ky danh
cam tuc » cam xuc, cam tu, nam thuc
tuc va » thuc va, truc va, tuc xa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sinh ((ky lang) OR (ky dang)) hoa hoi. hieu van cam tuc va danh vi ((cua triet) OR (su triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sinh ((ky lang) or (ky dang)) hoa hoi. hieu van cam tuc va danh vi ((cua triet) OR (su triet))~".
• Adding a wildcard symbol may retrieve word variants: hoc sinh ((ky lang) or (ky dang)) hoa hoi. hieu van cam tuc va danh vi ((cua triet) OR (su triet))*.