Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc hanh che snippets" » "hoc nhanh che snippets", "hoc thanh che snippets", "hoc anh che snippets", "hoc han che snippets", "hoc hanh he snippets", "hoc hanh nghe 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: (((("hoc hanh che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc hanh che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc hanh che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc hanh che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.