Perhaps you should try some spelling variations:
"dong tranh chat snippets" » "dong thanh chat snippets", "dong trinh chat snippets", "trong tranh chat snippets", "dong tranh chap snippets", "dong tinh chat 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: (((("dong tranh chat snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong tranh chat snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tranh chat snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tranh chat snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.