Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat minh xe snippets" » "pham minh xe snippets", "nha kinh xe snippets", "nhan sinh xe snippets", "nhat minh ve snippets", "nhat minh de snippets", "nhat minh hue 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: (((("nhat minh xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhat minh xe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat minh xe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat minh xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.