Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
tuan khong » toan khong, tuan phong, thuan phong
khong nang » khong cang, thong nang, khong ngung
tran tuan » tran xuan, tran quang, tran thanh
nang sang » nang song, nong san
hoc tran » hoc tren, boc tran, hoc than
sang van » dang van, tang van, san van
hoc tan » hoc tang, hoc dan, hoc tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc tran) OR (hoc tan)) thanh - thanh tran tuan khong nang sang van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc tran) OR (hoc tan)) thanh - thanh tran tuan khong nang sang van ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc tran) OR (hoc tan)) thanh - thanh tran tuan khong nang sang van ban*.