Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ninh de cua snippets" » "sinh de cua snippets", "minh de cua snippets", "ninh duc cua snippets", "ninh le cua snippets", "ninh te cua snippets", "ninh 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: (((("ninh de 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: (((("ninh de cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ninh de cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ninh de cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.