Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tu tieng so snippets" » "luc tieng so snippets", "tu tuong so snippets", "tu trong so snippets", "tu tieng o snippets", "tu tieng noi snippets", "tu tien bo 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: (((("tu tieng 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: (((("tu tieng so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tu tieng so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu tieng so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.