Perhaps you should try some spelling variations:
trinh toan » tinh toan, thanh toan, trinh han
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
hanh tang » hanh trang, anh tang, hanh mang
chu xanh » chu manh, chieu xanh, chua xang
tang cua » mang cua, hang cua, tang luan
toan cao » toan ban, toan tap
chu van » cuu van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) or (((chu han) or (chu van)))) - hanh tang cua thong cong trinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (((chu han) OR (chu van)))) - hanh tang cua thong cong trinh toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (((chu han) or (chu van)))) - hanh tang cua thong cong trinh toan cao*.