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