Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao pha du snippets" » "dao phat du snippets", "dao phu du snippets", "dam pha du snippets", "dao pham duc snippets", "dao pham duy snippets", "dao phan duc 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: (((("dao pha 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: (((("dao pha du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao pha du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao pha du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.