Perhaps you should try some spelling variations:
dang xay » dang van, van xay
su sach » so sach, vu sach
hanh ve » hanh vi, hanh va, hanh kem
hanh di » hanh vi, hanh de, hang di
dau tuc » dau tu, dao tuc, cau truc
sach tu » sach thu, cach tu, sach ty
cuu tre » cua tre, cau tren, cau treo
lang xa » lang ha, lang van
tuc va » thuc va, truc va, tuc xa
va dau » va dao

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 tu ((lang xa) OR (dang xay)) hoi. lieu va dau tuc va ((hanh di) or (hanh ve)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tu ((lang xa) OR (dang xay)) hoi. lieu va dau tuc va ((hanh di) OR (hanh ve)) cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tu ((lang xa) OR (dang xay)) hoi. lieu va dau tuc va ((hanh di) or (hanh ve)) cuu tre*".