Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quang ma cau snippets" » "xquang ma cau snippets", "quang va cau snippets", "quang manh cau snippets", "quang mau cau snippets", "quang da cau 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: (((("quang ma 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: (((("quang ma cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quang ma cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quang ma cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.