Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua cu cuoc snippets" » "qua ca cuoc snippets", "qua cu uoc snippets", "qua du cuoc snippets", "qua cua cuoc snippets", "qua su cuoc 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 cu cuoc 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 cu cuoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua cu cuoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua cu cuoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.