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