Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nano van cau snippets" » "nano va cau snippets", "nan van cau snippets", "nang van cau snippets", "nano van dau snippets", "nano van hau snippets", "nano van chat 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: (((("nano van 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: (((("nano van cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nano van cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nano van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.