Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua choi voi snippets" » "qua cho voi snippets", "cua chuoi voi snippets", "qua loi voi snippets", "qua doi voi snippets", "qua pho voi snippets", "qua hop voi 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 choi voi 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 choi voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua choi voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua choi voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.