Perhaps you should try some spelling variations:
tuan toan » xuan toan, tuan hoan, thuat toan
cay phoi » cap phoi, tay hoi, cay cho
hieu van » hieu va, thien van, lieu va
van tuan » van quan, van ban, anh tuan
te sach » toc sach
xuc van » duc van, luc van, vuc van
cua tre » cuu tre, cua triet, dua tren
van lam » van nam
lam xuc » cam xuc, lam duoc
ky danh » ky anh
ky dang » ky nang
cua te » cua tu

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 ((ky dang) or (ky danh)) cay phoi. hieu van lam xuc van tuan toan ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky dang) OR (ky danh)) cay phoi. hieu van lam xuc van tuan toan ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: te sach ((ky dang) or (ky danh)) cay phoi. hieu van lam xuc van tuan toan ((cua tre) or (cua te))*.