Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao tiep cua snippets" » "giao tiep cua snippets", "va tiep cua snippets", "dao tien cua snippets", "nao tiep can snippets", "nao dieu cua snippets", "nao tap 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: (((("nao tiep 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: (((("nao tiep cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao tiep cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao tiep cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.