Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu nganh » vien nganh, hiem ngan, nghiep nganh
hieu manh » chieu xanh, dieu hanh, hien hanh
hanh sinh » hanh tinh, hanh dinh, hinh sinh
vat nhung » va nhung, vap nhung, vai nhung
cong vinh » cong trinh, trong vinh, cong viec
vinh toan » tinh toan, hinh toan, minh toan
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: hoc ((hieu nganh) OR (hieu manh)) - hanh sinh vat nhung cong vinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu nganh) OR (hieu manh)) - hanh sinh vat nhung cong vinh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu nganh) OR (hieu manh)) - hanh sinh vat nhung cong vinh toan cau*.