Perhaps you should try some spelling variations:
ngung cong » nhung cong, dung cong, nganh cong
thanh tinh » thanh binh, nhanh tinh, than kinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tinh » hanh trinh, nhanh tinh, canh tinh
doc hieu » toc thieu, hoc thieu, hoc hien
cong van » cong vang, cong san, song van
phan cac » nhan cach, phan lap, phan van
phan dau » phan tu, hang dau
chat » nhat, phat

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu manh - ((hanh tinh) OR (thanh tinh)) chat ngung cong van ((phan cac) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu manh - ((hanh tinh) OR (thanh tinh)) chat ngung cong van ((phan cac) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu manh - ((hanh tinh) OR (thanh tinh)) chat ngung cong van ((phan cac) or (phan dau))".
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - ((hanh tinh) OR (thanh tinh)) chat ngung cong van ((phan cac) or (phan dau))*.