Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"day chu cua snippets" » "day cho cua snippets", "cay chu cua snippets", "dao chu cua snippets", "day chuc cua snippets", "day hu cua snippets", "day chi 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 chu cua 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 chu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( day chu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("day chu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.