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