Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac diem co snippets" » "dac diem co snippets", "cac dieu co snippets", "hai diem co snippets", "cac diem c snippets", "cac diem ca 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: (((("cac diem co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac diem co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac diem co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac diem co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.