Perhaps you should try some spelling variations:
"nha hang code snippets" » "nha hang cong snippets", "nha sang code snippets", "ngan hang code snippets", "nhat hanh code snippets", "nha hang code slippers"
"hang java java snippets" » "hang va java snippets", "hang java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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 hang code snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nha hang code snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nha hang code snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nha hang code snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.