Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
chu xanh » chieu xanh, chua xang, chuc danh
chu manh » ho manh, chu han, chu van
trang va » tran van, hang va
toan cao » toan ban, toan tap
tran va » tran van, tranh va, toan va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chu manh)) - hanh ((tran va) OR (trang va)) nhung cong manh toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (chu manh)) - hanh ((tran va) OR (trang va)) nhung cong manh toan cao~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chu manh)) - hanh ((tran va) OR (trang va)) nhung cong manh toan cao*.