Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi giet con snippets" » "thi viet con snippets", "thi lien con snippets", "thi hien con snippets", "thi diet con snippets", "thi viet co snippets", "thi biet lon 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: (((("thi giet 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: (((("thi giet con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi giet con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi giet con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.