Perhaps you should try some spelling variations:
cham tuc » nham thuc, pham thuc, tham thuc
cua viet » ca viet, hoa viet, cua vat
te sach » toc sach
sach ly » sach y, sach lo, sach ty
ly hang » ly quang
tai hai » thi hai, tai ha, tai phan
dai hai » dai han, dai hoi, dai tai
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di 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 ly hang ((tai hai) or (dai hai)). hieu ve cham tuc va hanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ly hang ((tai hai) OR (dai hai)). hieu ve cham tuc va hanh vi cua viet.
• Adding a wildcard symbol may retrieve word variants: te sach ly hang ((tai hai) or (dai hai)). hieu ve cham tuc va hanh vi cua viet*.