Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac thoi cap snippets" » "cac toi cap snippets", "cac hop cap snippets", "cac tro cap snippets", "cac thi cap snippets", "cac thong cap snippets", "cac thoai cac 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: (((("cac thoi cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac thoi cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac thoi cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac thoi cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.