Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua tap cua snippets" » "qua ap cua snippets", "cua tap cua snippets", "qua tai cua snippets", "qua tap quan snippets", "qua tiep 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: (((("qua tap 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: (((("qua tap cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua tap cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua tap cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.