Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hung ve doi snippets" » "chung ve doi snippets", "huong ve doi snippets", "hung v doi snippets", "hung va doi snippets", "hung te doi snippets", "hung ve do 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: (((("hung ve doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hung ve doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hung ve doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hung ve doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.