Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
canh doanh » hanh doanh, chinh doanh, doanh doanh
luan nhung » luan chung, quan nhung, luan phuong
tieu sach » chieu sach, dien sach, te sach
luan hung » luan chung, lan hung, luan ung
can cau » van cau, ban cau, ca cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - canh doanh ((luan nhung) or (luan hung)) ((dong thanh) OR (truong thanh)) can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - canh doanh ((luan nhung) OR (luan hung)) ((dong thanh) OR (truong thanh)) can cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - canh doanh ((luan nhung) or (luan hung)) ((dong thanh) OR (truong thanh)) can cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - canh doanh ((luan nhung) or (luan hung)) ((dong thanh) OR (truong thanh)) can cau*.