Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
hieu quang » thieu quang, hieu quan, hieu qua
truong hoi » truong hoc, truong khoa, truong dai
hieu lang » chieu sang, nhieu tang, hieu van
dang cong » dung cong
hoi dang » hoi dan, hoi lang, hoi dong
cong dan » cong san, cong tan, huong dan
toan tai » toan tap, doanh tai, toan cao
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 truong hoi dang cong dan ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (hieu quang)) - thanh truong hoi dang cong dan ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (hieu quang)) - thanh truong hoi dang cong dan ((toan tai) or (toan ban))*.