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