Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son luon can snippets" » "son duong can snippets", "von luan can snippets", "son con can snippets", "son luoc can snippets", "son luong cac snippets", "son luong van 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: (((("son luon can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son luon can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son luon can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son luon can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.