Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ong sac cua snippets" » "ong sach cua snippets", "cong sach cua snippets", "song sach cua snippets", "ong tac cua snippets", "ong cac cua 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: (((("ong sac cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ong sac cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ong sac cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ong sac cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.