Perhaps you should try some spelling variations:
dang xay » dang van, van xay
so sach » so sanh, bo sach, co sach
va tinh » may tinh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
tinh di » tinh doi, trinh di, tinh da
cam tuc » cam xuc, cam tu, nam thuc
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y ((nang xa) or (dang xay)) hoi. hieu va cam tuc va tinh di ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y ((nang xa) OR (dang xay)) hoi. hieu va cam tuc va tinh di ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: so sach y ((nang xa) or (dang xay)) hoi. hieu va cam tuc va tinh di ((cua te) or (cua tu))*.