Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"pha duc hai snippets" » "pham duc hai snippets", "phan duc hai snippets", "pha du hai snippets", "pha cuc hai snippets", "pha duc dai snippets", "pha duc hau snippets", "pha duc hai slippers"

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: (((("pha duc hai snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha duc hai snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( pha duc hai snippets ) or ( python using java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha duc hai snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))*.