Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
ban hanh » ban hang
tuc ban » thuc ban, truc ban, tu ban
cao tuc » dao tuc, cao duc, cao suc
sach tu » sach thu, cach tu, sach ty
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tu ((nang xa) OR (nang ma)) hoi. lieu va cao tuc ban hanh vi ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu ((nang xa) OR (nang ma)) hoi. lieu va cao tuc ban hanh vi ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu ((nang xa) OR (nang ma)) hoi. lieu va cao tuc ban hanh vi ((cua triet) or (va triet))".
• Adding a wildcard symbol may retrieve word variants: te sach tu ((nang xa) OR (nang ma)) hoi. lieu va cao tuc ban hanh vi ((cua triet) or (va triet))*.