Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"day dieu can snippets" » "da dieu can snippets", "day tieu can snippets", "dam dieu can snippets", "day dieu hanh snippets", "day tiep can snippets", "day dieu cua 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: (((("day dieu can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("day dieu can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( day dieu can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("day dieu can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.