Perhaps you should try some spelling variations:
phuong thong » phuong trong, thong thong, phuong hoang
nthanh hang » tranh hang, thanh hung, thanh hoang
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thanh hang » thanh hoang, thanh thang, tranh hang
va phuong » va thuong, cac phuong
thong dan » thong van, tuong dan, thong den
dan toan » van toan, dan than, manh toan
toan cau » 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 ((chieu xanh) OR (chieu sach)) - ((thanh hang) or (nthanh hang)) va phuong thong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - ((thanh hang) OR (nthanh hang)) va phuong thong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu sach)) - ((thanh hang) or (nthanh hang)) va phuong thong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu sach)) - ((thanh hang) or (nthanh hang)) va phuong thong dan toan cau*.