Perhaps you should try some spelling variations:
thieu quang » hieu quang, thien quan, trien quang
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
ai nhung » vai nhung, a nhung, thai nhung
cong dan » cong san, cong tan, huong dan
gian cao » giai cao, gian cam, gian cham
gian cac » gian dan, gian cua
tung ai » tung mai, dung ai, tung dan
gian co » gian o, gian cua, gian hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu quang - thanh tung ai nhung cong dan ((gian cao) or (((gian co) OR (gian cac))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu quang - thanh tung ai nhung cong dan ((gian cao) OR (((gian co) OR (gian cac)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu quang - thanh tung ai nhung cong dan ((gian cao) or (((gian co) OR (gian cac))))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu quang - thanh tung ai nhung cong dan ((gian cao) or (((gian co) OR (gian cac))))*.