Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
lang van » dang van, tang van, hoang van
cham tuc » nham thuc, pham thuc, tham thuc
hieu va » hieu qua
y lang » o lang, _ lang, tay lang
tuc va » thuc va, truc va, tuc xa
va anh » van anh, va danh, va hanh
anh vi » hanh vi, anh va, anh ve
vi cua » vai cua, di cua
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach y lang van hoa. ((hieu va) OR (lieu va)) cham tuc va anh vi cua cu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y lang van hoa. ((hieu va) OR (lieu va)) cham tuc va anh vi cua cu".
• Adding a wildcard symbol may retrieve word variants: toc sach y lang van hoa. ((hieu va) OR (lieu va)) cham tuc va anh vi cua cu*.