Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phuc va tong snippets" » "phuc vu tong snippets", "thuc va tong snippets", "chuc va tong snippets", "phuc va thong snippets", "phuc va tuong snippets", "phuc va trong 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: (((("phuc va tong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phuc va tong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuc va tong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuc va tong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.