Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac bieu cap snippets" » "cac kieu cap snippets", "cac bien cap snippets", "cac dieu cap snippets", "cac dieu can snippets", "cac bien tap snippets", "cac hieu 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 bieu 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 bieu cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac bieu cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac bieu cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.