Perhaps you should try some spelling variations:
toan phuong » doan phuong, tran phuong, toan thuong
phuong hung » phuong nhung, phuong dung, thuong hung
nhieu tang » hieu lang, nhiet nang
chieu sang » chieu sach, chieu xanh, hieu lang
canh trinh » canh tranh, hanh trinh, canh tinh
trinh toan » tinh toan, thanh toan, trinh han
hung manh » nhung manh, hung anh, tung manh
toan tap » toan ban
toan cao » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((nhieu tang) OR (chieu sang)) - canh trinh toan phuong hung manh ((toan tap) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((nhieu tang) OR (chieu sang)) - canh trinh toan phuong hung manh ((toan tap) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((nhieu tang) OR (chieu sang)) - canh trinh toan phuong hung manh ((toan tap) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ho ((nhieu tang) OR (chieu sang)) - canh trinh toan phuong hung manh ((toan tap) or (toan cao))*.