Perhaps you should try some spelling variations:
nong danh » nong dan, cong danh, nang danh
dong danh » dong doanh, dong anh, dung danh
kho canh » kho tang, thu canh, cho can
trang va » hang va
tran van » luan van
toan cao » toan ban, toan tap
doi kho » doi khi, doi pho, dai kho

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi kho canh - hanh ((trang va) or (tran van)) hang ((nong danh) or (dong danh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi kho canh - hanh ((trang va) OR (tran van)) hang ((nong danh) OR (dong danh)) toan cao.
• Adding a wildcard symbol may retrieve word variants: doi kho canh - hanh ((trang va) or (tran van)) hang ((nong danh) or (dong danh)) toan cao*.