Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thao cua toi snippets" » "thai cua toi snippets", "than cua toi snippets", "tho cua toi snippets", "thao cua hoi snippets", "thao cua moi snippets", "thao cua loai 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: (((("thao cua toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thao cua toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thao cua toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thao cua toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.