Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan ban voi snippets" » "toan ban voi snippets", "tang ban voi snippets", "van ban voi snippets", "tan ban moi snippets", "tan ba voi snippets", "tan ban noi 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 ban 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 ban voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan ban voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan ban voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.