Perhaps you should try some spelling variations:
thuong phuong » truong phuong, thong phuong, thong thuong
phuong dan » phuong danh, phuong doan, huong dan
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
san van » tan van, luan van, tran van
san va » ban va, dan va, han va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - hanh ((san va) or (san van)) thuong phuong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh ((san va) OR (san van)) thuong phuong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh ((san va) or (san van)) thuong phuong dan toan cao*.