Perhaps you should try some spelling variations:
thanh tung » thanh cong
thang cong » thanh cong, thang long, thong cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
dai thang » danh thang, tai thanh, dai han
ho chiet » ho chieu, hoa thiet, hoc nhiet
ho thiet » hoa thiet, so thiet, hoc thieu
tung dai » trung dai, tuong dai, tung dan
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((ho chiet) OR (hoc thiet))) or (ho thiet)) tach - thanh tung dai thang cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chiet) OR (hoc thiet))) OR (ho thiet)) tach - thanh tung dai thang cong dan than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((ho chiet) OR (hoc thiet))) or (ho thiet)) tach - thanh tung dai thang cong dan than cap".
• Adding a wildcard symbol may retrieve word variants: ((((ho chiet) OR (hoc thiet))) or (ho thiet)) tach - thanh tung dai thang cong dan than cap*.