Perhaps you should try some spelling variations:
thieu nganh » hieu nganh, trien nganh, nghiep nganh
hanh tranh » canh tranh, hanh trinh, hanh trang
trinh toan » tinh toan, thanh toan, trinh han
tranh cua » doanh cua, manh cua
ban cong » bang cong, van cong, phan cong
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: toc thieu nganh - hanh tranh cua ban cong trinh toan cau~.
• Adding a wildcard symbol may retrieve word variants: toc thieu nganh - hanh tranh cua ban cong trinh toan cau*.