Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh thuy chi snippets" » "anh thuc chi snippets", "anh tuy chi snippets", "thanh thuy chi snippets", "anh thu chi snippets", "anh thuy khi snippets", "anh thuy thi 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 thuy chi 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 thuy chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh thuy chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh thuy chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.