Perhaps you should try some spelling variations:
thanh nung » thanh tung, thanh hung, thanh dung
nhung cong » dung cong, thong cong, nhung don
hang cong » dang cong, hang nong, bang cong
tien anh » tieng anh, tien manh, tien thanh
dien anh » tieng anh, dien dan
nung cao » nang cao, nhung cau, quang cao
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((tien anh) OR (dien anh)) - thanh nung cao ((nhung cong) or (hang cong)) anh tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien anh) OR (dien anh)) - thanh nung cao ((nhung cong) OR (hang cong)) anh tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tien anh) OR (dien anh)) - thanh nung cao ((nhung cong) or (hang cong)) anh tuan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((tien anh) OR (dien anh)) - thanh nung cao ((nhung cong) or (hang cong)) anh tuan ban*.