Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam dao du snippets" » "dam bao du snippets", "dam dac du snippets", "nam dao du snippets", "dam dao duc snippets", "dam dao duy snippets", "dam dao do 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: (((("dam dao du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dam dao du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam dao du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam dao du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.