Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son cong de snippets" » "song cong de snippets", "bon cong de snippets", "san cong de snippets", "son cong da snippets", "son cong ve snippets", "son cong dieu 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: (((("son cong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son cong de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son cong de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son cong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.