Perhaps you should try some spelling variations:
dang xay » dang van, van xay
sach ky » sac ky, sach y, sach ty
dan cua » ban cua, dai cua, day cua
va hanh » van hanh, va thanh, va danh
cam tuc » cam xuc, cam tu, nam thuc
tu sach » thu sach, su sach, te sach
lang xa » lang ha, lang van
va cam » va cham, va cac, va cao
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: tu sach ky ((lang xa) or (dang xay)) hoi. lieu va cam tuc va hanh ((dan cua) OR (dan ca)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((lang xa) OR (dang xay)) hoi. lieu va cam tuc va hanh ((dan cua) OR (dan ca)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((lang xa) or (dang xay)) hoi. lieu va cam tuc va hanh ((dan cua) OR (dan ca)) tre*".