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