Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can cong ve snippets" » "cac cong ve snippets", "cao cong ve snippets", "van cong ve snippets", "can cuong ve snippets", "can cong va snippets", "can long ve 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: (((("can cong ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can cong ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can cong ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can cong ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.