Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau tinh do snippets" » "dac tinh do snippets", "dao tinh do snippets", "dam tinh do snippets", "dau trinh do snippets", "dau tinh doi snippets", "dau tinh da 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: (((("dau tinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau tinh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau tinh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau tinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.