Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
trinh toan » tinh toan, thanh toan, trinh han
chu xanh » chu manh, chieu xanh, chua xang
tang van » dang van, hoang van, trong van
toan cau » toan cao, toan ban, toan tap
cua chu » sua chua
tang va » trang va, thang va, tang vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: cua chu xanh - hanh ((tang va) OR (tang van)) thuong cong trinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cua chu xanh - hanh ((tang va) OR (tang van)) thuong cong trinh toan cau".
• Adding a wildcard symbol may retrieve word variants: cua chu xanh - hanh ((tang va) OR (tang van)) thuong cong trinh toan cau*.