Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh mang » nhanh mang, hanh trang, nhanh lang
toc hieu » toc thieu, doc hieu, hoc thieu
mang dan » tang dan, dang dan, mang dat
dan dung » van dung, tin dung, ap dung
vung dat » vung va
dung dat » dung va, dung tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu manh - hanh mang dan dung ((vung dat) OR (dung dat)) phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc hieu manh - hanh mang dan dung ((vung dat) OR (dung dat)) phan tu".
• Adding a wildcard symbol may retrieve word variants: toc hieu manh - hanh mang dan dung ((vung dat) OR (dung dat)) phan tu*.