Perhaps you should try some spelling variations:
dung tren » dung trong, dung trung
phan lap » phan dau
te sach » toc sach
va phan » van phan, va phat, va phap
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
cuu tre » cua 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: te sach ((ty nang) or (ty hang)) xa hoi. hieu ve pham duc va phan lap ((dung tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty hang)) xa hoi. hieu ve pham duc va phan lap ((dung tren) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) or (ty hang)) xa hoi. hieu ve pham duc va phan lap ((dung tren) or (cuu tre))*.