Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"fan moi con snippets" » "ban moi con snippets", "can moi con snippets", "fan mo con snippets", "fan moi cong snippets", "fan moi co snippets", "fan mot con 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 moi con 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 moi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( fan moi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("fan moi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.