Perhaps you should try some spelling variations:
thien van » thi van
thanh vai » thanh hai, thanh van, thanh tai
xa thanh » va thanh, ha thanh, ta thanh
van cam » van nam, van lam, van cau
cuu tre » cau tren, cau treo
cam tuc » cam xuc, cam tu, nam thuc
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
tang ma » tang van
cua tre » cua te, cua triet, dua tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky ((tang ma) OR (mang may)) hoi. thien van cam tuc xa thanh vai ((cuu tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((tang ma) OR (mang may)) hoi. thien van cam tuc xa thanh vai ((cuu tre) OR (cua tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((tang ma) OR (mang may)) hoi. thien van cam tuc xa thanh vai ((cuu tre) or (cua tre))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((tang ma) OR (mang may)) hoi. thien van cam tuc xa thanh vai ((cuu tre) or (cua tre))*.