Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua san hoi snippets" » "qua ban hoi snippets", "cua san hoi snippets", "qua van hoi snippets", "qua san choi snippets", "qua dan hoi snippets", "qua san ho 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 san hoi 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 san hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua san hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua san hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.