Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang xay » dang van, van xay
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
hanh tuc » hanh tu, nhanh thuc, hanh thuoc
te sach » toc sach
sang ma » tang ma, nang ma, sang tao
va hanh » va thanh, va danh, ban hanh
hanh va » hang va, hanh vi
tuc va » thuc va, truc va, tuc xa
va cua » va chua, via cua, ca cua

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 y ((sang ma) or (dang xay)) hoi. hieu van hanh tuc va hanh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((sang ma) OR (dang xay)) hoi. hieu van hanh tuc va hanh va cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach y ((sang ma) or (dang xay)) hoi. hieu van hanh tuc va hanh va cua triet*.