Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
te sach » toc sach
vai cuu » vai cua
thuc ha » thu ha, thuc va, thuc hanh
sang ma » tang ma, nang ma, sang tao
van cam » van lam, van cau, van dam
cuu tre » cua tre, cau tren, cau treo
tuc ha » tuc hai, tuc hat, tuc xa
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 _ sang ma hoi. hieu ((van cam) or (van nam)) ((tuc ha) OR (thuc ha)) thanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach _ sang ma hoi. hieu ((van cam) OR (van nam)) ((tuc ha) OR (thuc ha)) thanh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach _ sang ma hoi. hieu ((van cam) or (van nam)) ((tuc ha) OR (thuc ha)) thanh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach _ sang ma hoi. hieu ((van cam) or (van nam)) ((tuc ha) OR (thuc ha)) thanh vai cuu tre*.