Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
trung hoc » trung quoc
cong ban » cong bang, cong san, cong tan
tung ho » tuong ho, trung hoa, tong hop
khan ap » khan cap, khan dam
han ap » han tap, dan ap, han phap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - thanh ((tung ho) or (trung hoc)) thong cong ban ((khan ap) OR (han ap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - thanh ((tung ho) OR (trung hoc)) thong cong ban ((khan ap) OR (han ap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - thanh ((tung ho) or (trung hoc)) thong cong ban ((khan ap) OR (han ap))".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh ((tung ho) or (trung hoc)) thong cong ban ((khan ap) OR (han ap))*.