Perhaps you should try some spelling variations:
thanh va » thanh van, thanh ha, thanh ve
pham cuu » pham huu, cham cuu, pham cua
hoc cac » hoc cao
hanh va » hang va, hanh vi
cuu ban » cuu van, cua ban, cuu san
va pham » van pham, va phat, va phap
cac thu » cach thuc, cac thoi
bang va » hang va, ban va, trang va
bang xa » lang xa, mang xa, ang xa
cau tre » cau tren, cau treo, cau tra

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc cac thu ((bang xa) or (bang va)) hoi. lieu va pham cuu ban ((thanh va) or (hanh va)) cau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc cac thu ((bang xa) OR (bang va)) hoi. lieu va pham cuu ban ((thanh va) OR (hanh va)) cau tre.
• Adding a wildcard symbol may retrieve word variants: hoc cac thu ((bang xa) or (bang va)) hoi. lieu va pham cuu ban ((thanh va) or (hanh va)) cau tre*.