Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"so sinh tong snippets" » "so sinh trong snippets", "so sinh cong snippets", "so sinh ton snippets", "so sanh tong snippets", "so tinh tong snippets", "cho sinh tong 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: (((("so sinh 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: (((("so sinh tong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( so sinh tong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("so sinh tong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.