Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
thanh lap » thanh san, phan lap, thanh van
xuc ban » duc ban, cuc ban, quoc ban
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
sach tu » sach thu, cach tu, sach ty
va cam » va cham, va cac, va cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach y) or (sach tu)) lang xa hoi. hieu va cam xuc ban ((thanh lap) OR (thanh hai)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach y) OR (sach tu)) lang xa hoi. hieu va cam xuc ban ((thanh lap) OR (thanh hai)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach y) or (sach tu)) lang xa hoi. hieu va cam xuc ban ((thanh lap) OR (thanh hai)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach y) or (sach tu)) lang xa hoi. hieu va cam xuc ban ((thanh lap) OR (thanh hai)) cuu tre*.