Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lang cua doi snippets" » "mang cua doi snippets", "hang cua doi snippets", "long cua doi snippets", "lang sua doi snippets", "lang cua dai snippets", "lang cua hoi 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: (((("lang cua doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lang cua doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lang cua doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang cua doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.