Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
dau tuc » dau tu, dao tuc, cau truc
tuc van » thuc van, truc van, tuc va
cua tre » cua te, cuu tre, cua triet
va dau » va dao
minh d » minh de, minh di, binh d
d cua » de cua, do cua, da cua

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 (lang xa)) hoi. lieu va dau tuc van minh d cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((nang xa) OR (lang xa)) hoi. lieu va dau tuc van minh d cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty ((nang xa) or (lang xa)) hoi. lieu va dau tuc van minh d cua tre*.