Perhaps you should try some spelling variations:
hang nong » thang long, han tong
nong manh » nong lanh, duong manh, hoang manh
manh toan » thanh toan, anh tuan, tinh toan
trang va » hang va
tran van » luan van
toan cao » toan ban, toan tap
khi anh » thi anh, chi anh, khia canh

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

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