Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc su hoan snippets" » "doc su han snippets", "doc vu hoan snippets", "doc thu hoan snippets", "duoc su hoan snippets", "hoc su hoan snippets", "doi su hoan 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 su hoan 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 su hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc su hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc su hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.