Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
tinh hai » tinh thai, tinh chat, trinh han
thai tuc » thai thuc, thai thuy, thai hoc
hieu van » hieu va, thien van, lieu va
van thai » van thoai, van tai, van hai
sach tu » sach thu, cach tu, sach ty
va tinh » may tinh
nang xa » lang xa, nang ma, mang xa
tu sach » thu sach, su sach, te sach
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach tu ((nang xa) or (nang x)) hoi. hieu van thai tuc va tinh hai ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tu ((nang xa) OR (nang x)) hoi. hieu van thai tuc va tinh hai ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach tu ((nang xa) or (nang x)) hoi. hieu van thai tuc va tinh hai ((cua triet) or (su triet))*.