Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
thanh tung » thanh cong
nhung vung » nhung dung, nhung huong, nhung tuong
hieu lang » chieu sang, nhieu tang, hieu van
tam nhung » tham nhung, cam nhung, nam nhung
vung dan » vung dat, dung dan, tung dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 lang) OR (hieu quang)) - ((thanh trung) or (thanh tung)) tam nhung vung dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (hieu quang)) - ((thanh trung) OR (thanh tung)) tam nhung vung dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) OR (hieu quang)) - ((thanh trung) or (thanh tung)) tam nhung vung dan toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) OR (hieu quang)) - ((thanh trung) or (thanh tung)) tam nhung vung dan toan ban*.