Perhaps you should try some spelling variations:
"ngang cho cong snippets" » "nang cho cong snippets", "ngang tho cong snippets", "sang cho cong snippets", "ngang cao cong snippets", "ngang cua cong snippets", "ngang cac cong snippets"
"hang java java snippets" » "hang va java 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: (((("ngang cho cong snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngang cho cong snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngang cho cong snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngang cho cong snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.