Perhaps you should try some spelling variations:
thanh tung » thanh cong
khong cong » thong cong, khong cang, chong cong
hoc thieu » toc thieu, hoc hien
cao khong » cao phong, cat khong, dao khong
ho chieu » theo chieu, doi chieu, mot chieu
tung cao » nung cao, truong cao, trung cap
dan chan » dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) tinh - thanh tung cao khong cong ((dan chan) OR (dan gian)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - thanh tung cao khong cong ((dan chan) OR (dan gian)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) tinh - thanh tung cao khong cong ((dan chan) OR (dan gian)) cau*".