Perhaps you should try some spelling variations:
trien quang » tran quang, dien quang, thien quan
tuyen quang » nguyen quang, tuyen dung, tuyen duong
thanh tuong » thanh thuong, thanh tung, thanh huong
cong thanh » dong thanh, cong tan, truong thanh
tuong va » truong va, thuong va, luong va
va thong » va thuong, va phuong, he thong
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: ho ((trien quang) OR (tuyen quang)) - thanh tuong va thong ((cong thanh) or (cong trinh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((trien quang) OR (tuyen quang)) - thanh tuong va thong ((cong thanh) OR (cong trinh)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((trien quang) OR (tuyen quang)) - thanh tuong va thong ((cong thanh) or (cong trinh)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((trien quang) OR (tuyen quang)) - thanh tuong va thong ((cong thanh) or (cong trinh)) toan cao*.