Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau may cong snippets" » "dau cay cong snippets", "dau cac cong snippets", "dau cao cong snippets", "dam may cong snippets", "dat may cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dau may cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau may cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau may cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau may cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.