Perhaps you should try some spelling variations:
thien tinh » thien minh, tien tinh, trien tinh
khien tinh » khien thich, bien tinh, dien tinh
danh quang » doanh quang, dang quang, dinh quang
trung lap » trung cap, truong lam, truong lop
cong danh » cuong danh, cong dan, cong thanh
quang cao » nang cao, quang nam
trung la » trung ha, trung va, trung ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien tinh) or (khien tinh)) - thanh ((trung la) OR (trung lap)) trong cong danh quang cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien tinh) OR (khien tinh)) - thanh ((trung la) OR (trung lap)) trong cong danh quang cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien tinh) or (khien tinh)) - thanh ((trung la) OR (trung lap)) trong cong danh quang cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien tinh) or (khien tinh)) - thanh ((trung la) OR (trung lap)) trong cong danh quang cao*.