Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua voi cuoc snippets" » "qua doi cuoc snippets", "qua voi quoc snippets", "qua va cuoc snippets", "qua loi cuoc snippets", "dua voi cuoc snippets", "qua noi 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 voi 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 voi cuoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua voi cuoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua voi cuoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.