Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tho cua toi snippets" » "thao cua toi snippets", "tho ca toi snippets", "tro cua toi snippets", "tho cua hoi snippets", "tho cua moi snippets", "tho 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: (((("tho 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: (((("tho cua toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tho cua toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tho cua toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.