Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"soc danh du snippets" » "hoc danh du snippets", "so danh du snippets", "soc dan du snippets", "soc danh dau snippets", "soc danh tu snippets", "soc dinh du 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: (((("soc danh 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: (((("soc danh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( soc danh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("soc danh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.