Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua kinh do snippets" » "qua kinh do snippets", "cua sinh do snippets", "cua tinh do snippets", "cua kinh co snippets", "cua trinh do snippets", "cua kinh hoc 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: (((("cua kinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua kinh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua kinh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua kinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.