Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
nang xa » lang xa, nang ma, mang xa
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
tuc gia » tac gia, duc gia, toc gia
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y ((nang xa) or (nang x)) hoi. hieu van cam tuc gia thanh ((vi cua) OR (di cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((nang xa) OR (nang x)) hoi. hieu van cam tuc gia thanh ((vi cua) OR (di cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y ((nang xa) or (nang x)) hoi. hieu van cam tuc gia thanh ((vi cua) OR (di cua)) triet".
• Adding a wildcard symbol may retrieve word variants: su sach y ((nang xa) or (nang x)) hoi. hieu van cam tuc gia thanh ((vi cua) OR (di cua)) triet*.