Perhaps you should try some spelling variations:
thu nang » thu hang, thu bang, tho nang
thi nang » thi cong, ki nang, thi hanh
su sach » so sach, vu sach
cua tre » cua te, cua triet, dua tren
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
dau tuc » dau tu, dao tuc, cau truc
cuu tre » cau tren, cau treo
va dau » va dao
tuc va » thuc va, truc va, tuc xa

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