Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
tinh van » trinh van, dinh van, tinh va
van cua » vang cua, ban cua, dan cua
ly hang » ly quang
tuc va » thuc va, truc va, tuc xa
va cam » va cham, va cac, va cao
xuc va » duc va, luc va, xac va
ly ang » ly vang, ly nang, ly anh
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: nuoc sach ((ly ang) OR (ly hang)) xa hoi. lieu va cam ((xuc va) or (tuc va)) tinh van cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc sach ((ly ang) OR (ly hang)) xa hoi. lieu va cam ((xuc va) OR (tuc va)) tinh van cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc sach ((ly ang) OR (ly hang)) xa hoi. lieu va cam ((xuc va) or (tuc va)) tinh van cua te".
• Adding a wildcard symbol may retrieve word variants: nuoc sach ((ly ang) OR (ly hang)) xa hoi. lieu va cam ((xuc va) or (tuc va)) tinh van cua te*.