Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh vat » trinh van, trinh luat, sinh vat
cong danh » cuong danh, cong dan, cong thanh
danh phan » doanh phan, danh nhan, danh phap
hoc hieu » hoc thieu, hoc hien, doc hieu
trinh va » trinh van, trinh ve, trinh vi
phan cau » phan dau, phan cac, phan tu

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 manh - canh ((trinh va) OR (trinh vat)) nhung cong danh phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - canh ((trinh va) OR (trinh vat)) nhung cong danh phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - canh ((trinh va) OR (trinh vat)) nhung cong danh phan cau*.