Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuu hoan do snippets" » "luu hoang do snippets", "cuu van do snippets", "cuu khoa do snippets", "cuu hoan doi snippets", "cuu doan do snippets", "cuu toan do 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: (((("cuu hoan 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: (((("cuu hoan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuu hoan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuu hoan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.