Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac trai cua snippets" » "tam trai cua snippets", "khac trai cua snippets", "rac thai cua snippets", "tac tri cua snippets", "tac thai cua snippets", "tac troi 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: (((("tac trai 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: (((("tac trai cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac trai cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac trai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.