Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trang » thanh trung, canh tranh, hanh trinh
trinh toan » tinh toan, thanh toan, trinh han
hanh tang » anh tang, hanh mang, hanh tung
cua nhung » va nhung
chu manh » ho manh, chu han, thu minh
toan cau » toan cao, toan ban, toan tap
chu van » cuu van, chu han

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao ((chu manh) OR (chu van)) - ((hanh tang) or (hanh trang)) cua nhung cong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chu manh) OR (chu van)) - ((hanh tang) OR (hanh trang)) cua nhung cong trinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chu manh) OR (chu van)) - ((hanh tang) or (hanh trang)) cua nhung cong trinh toan cau".
• Adding a wildcard symbol may retrieve word variants: chao ((chu manh) OR (chu van)) - ((hanh tang) or (hanh trang)) cua nhung cong trinh toan cau*.