Perhaps you should try some spelling variations:
sach ty » sach y, sach tu, sach thu
van anh » van thanh, van minh
dau tuc » dau tu, dao tuc, cau truc
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
cuu tre » cua tre, cau tren, cau treo
va dau » va dao
de cuu » de cua
tuan » quan, tran, luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty ((nang xa) OR (nang ma)) hoi. lieu va dau tuc ((van anh) or (tuan anh)) de cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((nang xa) OR (nang ma)) hoi. lieu va dau tuc ((van anh) OR (tuan anh)) de cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((nang xa) OR (nang ma)) hoi. lieu va dau tuc ((van anh) or (tuan anh)) de cuu tre*".