Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con song cua snippets" » "can song cua snippets", "con hong cua snippets", "cuoc song cua snippets", "con cong cua snippets", "con dong cua snippets", "con huong cua 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: (((("con song cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con song cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con song cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con song cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.