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