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