Perhaps you should try some spelling variations:
khong thong » thong thong, khong trong, thong thuong
thieu quang » thien quan, trien quang, hieu quan
hieu quang » hieu quan, hieu qua, diep quang
hanh doanh » chinh doanh, doanh doanh, kinh doanh
hang doanh » nhung doanh, van doanh, dung doanh
cua khong » hua khong, cua phuong, cua thuong
thong van » trong van, thong va, thong quan
van hanh » van thanh, ban hanh, van anh
hanh tai » thanh tai, hang tai, han tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thien ((hieu quang) or (thieu quang)) - ((hanh doanh) OR (hang doanh)) cua khong thong van hanh tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thien ((hieu quang) OR (thieu quang)) - ((hanh doanh) OR (hang doanh)) cua khong thong van hanh tai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thien ((hieu quang) or (thieu quang)) - ((hanh doanh) OR (hang doanh)) cua khong thong van hanh tai".
• Adding a wildcard symbol may retrieve word variants: thien ((hieu quang) or (thieu quang)) - ((hanh doanh) OR (hang doanh)) cua khong thong van hanh tai*.