Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nha trang do snippets" » "nhat trang do snippets", "nha truong do snippets", "thai trang do snippets", "nha trang o snippets", "nha tang do snippets", "nha trang de 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: (((("nha trang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nha trang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nha trang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nha trang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.