Perhaps you should try some spelling variations:
chua xang » chua nang, chuc nang, chu bang
tang luan » dung luan
dung cong » dung trong
chu xang » chu bang, chuc nang, chu quang
tang cua » mang cua, hang cua, thong cua
cong san » cong tac
san than » sang than, san thanh, ban than
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xang) or (chua xang)) - hanh ((tang cua) OR (tang luan)) dung cong san than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xang) OR (chua xang)) - hanh ((tang cua) OR (tang luan)) dung cong san than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xang) or (chua xang)) - hanh ((tang cua) OR (tang luan)) dung cong san than tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xang) or (chua xang)) - hanh ((tang cua) OR (tang luan)) dung cong san than tap*.