Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
xang xa » mang xa, ang xa, dang xay
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cac vuc » cac nuoc, cac vung, cac cuoc
vuc anh » duc anh, vu anh, luc canh
vai cua » dai cua, hai cua, lai cua
di cua » dai cua, doi cua, de cua

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 ty ((xang xa) or (lang xa)) hoi. hieu va cac vuc anh tuan ((di cua) or (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((xang xa) OR (lang xa)) hoi. hieu va cac vuc anh tuan ((di cua) OR (vai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((xang xa) or (lang xa)) hoi. hieu va cac vuc anh tuan ((di cua) or (vai cua)) tre*.