Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
cham tuc » nham thuc, pham thuc, tham thuc
va thanh » gia thanh, ban thanh, va tinh
tu sach » su sach, te sach, tu cach
xang xa » lang xa, mang xa, ang xa
va cham » va chat, va tham
vai cua » dai cua, hai cua, lai cua
tuc va » thuc va, truc va, tuc xa
vi 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: ((tu sach) or (thu sach)) ty xang xa hoi. lieu va cham tuc va thanh ((vi cua) OR (vai cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ty xang xa hoi. lieu va cham tuc va thanh ((vi cua) OR (vai cua)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ty xang xa hoi. lieu va cham tuc va thanh ((vi cua) OR (vai cua)) tu".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ty xang xa hoi. lieu va cham tuc va thanh ((vi cua) OR (vai cua)) tu*.