Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan dieu so snippets" » "nhan dieu so snippets", "dang dieu so snippets", "toan dien so snippets", "doan hieu so snippets", "doan lieu so snippets", "doan dieu co 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: (((("doan dieu so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan dieu so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan dieu so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan dieu so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.