Perhaps you should try some spelling variations:
thanh di » thanh doi, thanh de, thanh do
dang xay » dang van, van xay
va thanh » gia thanh, ban thanh, va tinh
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach tu, sach thu
va cham » va chat, va tham
di cua » dai cua, doi cua, de cua
luc va » duc va, tuc va, loc va
va cam » va cac, va cao, va cai
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: so sach ty ((nang xa) or (dang xay)) hoi. hieu ((va cam) OR (va cham)) luc va thanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty ((nang xa) OR (dang xay)) hoi. hieu ((va cam) OR (va cham)) luc va thanh di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty ((nang xa) or (dang xay)) hoi. hieu ((va cam) OR (va cham)) luc va thanh di cua te".
• Adding a wildcard symbol may retrieve word variants: so sach ty ((nang xa) or (dang xay)) hoi. hieu ((va cam) OR (va cham)) luc va thanh di cua te*.