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