Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tieu xanh » chieu xanh, dieu hanh, tien anh
tieu danh » dieu danh, tiep danh, thien danh
trinh han » trinh quan
cong tinh » cong trinh, cong vinh, long tinh
trinh he » trinh hoa, trinh thi, trinh ky
toan cau » toan cao, toan ban, toan tap

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) or (tieu danh)) - hanh ((trinh he) OR (trinh han)) thong cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (tieu danh)) - hanh ((trinh he) OR (trinh han)) thong cong tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) or (tieu danh)) - hanh ((trinh he) OR (trinh han)) thong cong tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) or (tieu danh)) - hanh ((trinh he) OR (trinh han)) thong cong tinh toan cau*.