Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan tat cua snippets" » "ban tat cua snippets", "toan tap cua snippets", "toan tai cua snippets", "tan mat cua snippets", "tan tat ca snippets", "tan bat cua 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: (((("tan tat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tan tat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan tat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan tat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.