Perhaps you should try some spelling variations:
hien nganh » vien nganh, hieu nganh, trien nganh
hien nhanh » hien hanh, thien thanh, tien thanh
trinh toan » tinh toan, thanh toan, trinh han
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
cua hang » cua dang, cua nhung, cua cong
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: hoc ((hien nganh) OR (hien nhanh)) - canh tranh cua hang cong trinh toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien nganh) OR (hien nhanh)) - canh tranh cua hang cong trinh toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nganh) OR (hien nhanh)) - canh tranh cua hang cong trinh toan cao*.