Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"fan vu cac snippets" » "van vu cac snippets", "fan wu cac snippets", "han vu cac snippets", "fan va cac snippets", "fan tu cac snippets", "fan ve 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: (((("fan vu 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: (((("fan vu cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( fan vu cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("fan vu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.