Perhaps you should try some spelling variations:
sach ty » sach tu, sach thu, xach tay
lang ha » long ha
dau tuc » dau tu, dao tuc, cau truc
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
ha hoi » hoa hoi, ha noi, xa hoi
va dau » va dao
tuc va » thuc va, truc va, tuc xa
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: su ((sach ty) OR (sach y)) lang ha hoi. lieu va dau tuc va hanh di cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) OR (sach y)) lang ha hoi. lieu va dau tuc va hanh di cua tre*".