Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chau nu doc snippets" » "chau au doc snippets", "khau ngu doc snippets", "chau phu doc snippets", "chau n1 doc snippets", "chau n2 doc snippets", "chau n3 doc 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: (((("chau nu doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chau nu doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chau nu doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chau nu doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.