Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao dieu co snippets" » "cao hieu co snippets", "cau dieu co snippets", "cac dieu co snippets", "cao dieu con snippets", "cao lieu co snippets", "cao deu co 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: (((("cao dieu 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: (((("cao dieu co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao dieu co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao dieu co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.