Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
dua tren » dung tren
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, me hoi

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 ly nang ((ma hoi) OR (ma hoa)). hieu ve 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 ly nang ((ma hoi) OR (ma hoa)). hieu ve pham duc va thanh lap ((dua tren) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ly nang ((ma hoi) OR (ma hoa)). hieu ve pham duc va thanh lap ((dua tren) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sach ly nang ((ma hoi) OR (ma hoa)). hieu ve pham duc va thanh lap ((dua tren) or (cuu tre))*.