Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh khoa ho snippets" » "doanh khoa ho snippets", "hang khoa ho snippets", "anh khoa hoc snippets", "anh khoa hoi snippets", "anh khoa 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: (((("anh khoa ho 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 khoa ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh khoa ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh khoa ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.