Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"van ca dung snippets" » "van cap dung snippets", "van cu dung snippets", "van ca nung snippets", "van cau dung snippets", "van cua dung snippets", "dan ca dung snippets", "van ca dung slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"van ca dung snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( van ca dung snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van ca dung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.