Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
dau tieng » dau tien, cau tieng, day tieng
hoa lang » hoa dan, hoa van
cham tuc » nham thuc, pham thuc, tham thuc
cau tren » cu tren, dau tren, ca tren
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
va cham » va chat, va tham
o lang » hoi lang
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ((o lang) or (hoa lang)) xa hoi. lieu va cham tuc va hanh va ((cau tren) or (dau tieng))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ((o lang) OR (hoa lang)) xa hoi. lieu va cham tuc va hanh va ((cau tren) OR (dau tieng)).
• Adding a wildcard symbol may retrieve word variants: thuoc sach ((o lang) or (hoa lang)) xa hoi. lieu va cham tuc va hanh va ((cau tren) or (dau tieng))*.