Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son cau cong snippets" » "son cac cong snippets", "son cuu cong snippets", "son cao cong snippets", "song cau cong snippets", "so cau cong snippets", "toan cau cong 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 cau cong 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 cau cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son cau cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son cau cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.