Perhaps you should try some spelling variations:
nhung nong » nhung cong, nhung bong, nhung chong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hieu lang » chieu sang, hieu quang, nhieu tang
tang luan » dung luan
tang cua » mang cua, hang cua, thong cua
nong tan » cong tan, nong dan, nong san
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu manh) or (hieu lang)) - anh ((tang cua) OR (tang luan)) nhung nong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (hieu lang)) - anh ((tang cua) OR (tang luan)) nhung nong tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu manh) or (hieu lang)) - anh ((tang cua) OR (tang luan)) nhung nong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (hieu lang)) - anh ((tang cua) OR (tang luan)) nhung nong tan toan cao*.