Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan do voi snippets" » "tang do voi snippets", "toan do voi snippets", "tuan do voi snippets", "tan doi voi snippets", "tan dao voi snippets", "tan do moi 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: (((("tan do voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tan do voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan do voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan do voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.