Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thoi cao so snippets" » "thai cao so snippets", "thoi dao so snippets", "thoi sao so snippets", "thoi cao son snippets", "thoi co so snippets", "thoi cao su 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: (((("thoi cao 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: (((("thoi cao so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoi cao so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoi cao so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.