Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
dang xa » dang xay, dang ha, dang va
lang xa » lang ha, dang xay, lang van
cac tuc » cac toc, cac tu, cac tac
dan vai » dan tai, dan vat, den vai
dan va » doan va, dan ca, ban va

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 ky ((dang xa) OR (lang xa)) hoi. lieu va cac tuc xa ((dan vai) or (dan va)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((dang xa) OR (lang xa)) hoi. lieu va cac tuc xa ((dan vai) OR (dan va)) cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((dang xa) OR (lang xa)) hoi. lieu va cac tuc xa ((dan vai) or (dan va)) cua viet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((dang xa) OR (lang xa)) hoi. lieu va cac tuc xa ((dan vai) or (dan va)) cua viet*.