Perhaps you should try some spelling variations:
giay thanh » gia thanh, gian thanh
thanh lai » thanh hai, thanh lap, thanh loi
dua tren » dung tren
te sach » toc sach
so giay » so giai, so giao, so gia
cham so » cham soc, cham o, ham so
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
tai hoi » tai khoi, dai hoi, tai hai
ty nang » ty xang, ty hang, 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 (ky nang)) tai hoi. hieu ve cham so giay thanh lai ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ky nang)) tai hoi. hieu ve cham so giay thanh lai ((dua tren) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) OR (ky nang)) tai hoi. hieu ve cham so giay thanh lai ((dua tren) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) OR (ky nang)) tai hoi. hieu ve cham so giay thanh lai ((dua tren) or (cuu tre))*.