Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bai thi hue snippets" » "bui thi hue snippets", "ban thi hue snippets", "tai thi hue snippets", "bai thien hue snippets", "bai thi thuy 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: (((("bai thi hue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bai thi hue snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bai thi hue snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bai thi hue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.