Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc si cau snippets" » "duoc si cau snippets", "quoc so cau snippets", "quoc su cau snippets", "quoc di cau snippets", "quoc si cay 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: (((("quoc si cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quoc si cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc si cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc si cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.