Perhaps you should try some spelling variations:
thanh loi » thanh hoa, thanh hai, thanh lap
ban thanh » ban hanh, ban hang
tru nang » tra nang, truc nano, thi nang
tri nang » thi nang, tra nang, tri bang
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
cua tre » cua te, cua triet, dua tren
van cam » van nam, van lam, van cau
xuc ban » duc ban, cuc ban, quoc ban
cuu tre » cau tren, cau treo

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 ((tru nang) OR (tri nang)) xa hoi. hieu van cam xuc ban thanh loi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((tru nang) OR (tri nang)) xa hoi. hieu van cam xuc ban thanh loi ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((tru nang) OR (tri nang)) xa hoi. hieu van cam xuc ban thanh loi ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: su sach ((tru nang) OR (tri nang)) xa hoi. hieu van cam xuc ban thanh loi ((cua tre) or (cuu tre))*.