Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan tinh dh snippets" » "quan binh dh snippets", "quang ninh dh snippets", "quang binh dh snippets", "quan tinh da snippets", "quan sinh dh snippets", "quan tinh 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: (((("quan tinh dh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan tinh dh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan tinh dh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan tinh dh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.