Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
hieu voi » hieu moi, lieu voi, hieu loi
dua tren » dung tren
va thanh » gia thanh, ban thanh, va tinh
sach lo » sach dao, sach doi, sach hoi
te sach » toc sach
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
lo nang » ho nang, ly nang, loai nang
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach lo nang ma hoi. ((hieu ve) or (hieu voi)) pham duc va thanh lap ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach lo nang ma hoi. ((hieu ve) OR (hieu voi)) pham duc va thanh lap ((dua tren) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te sach lo nang ma hoi. ((hieu ve) or (hieu voi)) pham duc va thanh lap ((dua tren) or (cuu tre))*.