Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
hanh trung » thanh trung, hanh trang, manh trung
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
trung dap » trung cap, trung dai, trung dam
hoc hieu » hoc thieu, hoc hien, doc hieu
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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 lang - hanh trung dap ((nhung cong) OR (thong cong)) dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu lang - hanh trung dap ((nhung cong) OR (thong cong)) dan than cau".
• Adding a wildcard symbol may retrieve word variants: hoc hieu lang - hanh trung dap ((nhung cong) OR (thong cong)) dan than cau*.