Perhaps you should try some spelling variations:
khong thong » thong thong, thong thuong, phong chong
khong trong » khoang trong, thong trong, phong trong
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
van chat » cao chat
chat cac » chat cam, chat cao, cho cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) OR (hoc thieu)) xanh - canh tranh cua ((khong thong) or (khong trong)) van chat cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc thieu)) xanh - canh tranh cua ((khong thong) OR (khong trong)) van chat cac*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc thieu)) xanh - canh tranh cua ((khong thong) or (khong trong)) van chat cac*".