Perhaps you should try some spelling variations:
thong trong » thuong trong, thong thong, thong thuong
thanh tuong » thanh thuong, thanh tung, thanh huong
hieu quang » thieu quang, hieu quan, diep quang
trong danh » trong doanh, truong danh, trong anh
tuong va » truong va, thuong va, luong va
va thong » va thuong, va phuong, he thong
danh van » doanh van, dang van, dinh van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu quang) or (hieu qua)) - thanh tuong va thong trong danh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu quang) OR (hieu qua)) - thanh tuong va thong trong danh van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu quang) or (hieu qua)) - thanh tuong va thong trong danh van ban*.