Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuoc he co snippets" » "thuoc ho co snippets", "thuoc theo co snippets", "hoc he co snippets", "thuoc de co snippets", "thuoc ke co snippets", "thuoc ve co 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: (((("thuoc he co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuoc he co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuoc he co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuoc he co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.