Perhaps you should try some spelling variations:
"trinh hang ca snippets" » "trinh han ca snippets", "tranh hang ca snippets", "trinh hanh ca snippets", "trinh nang cao snippets", "trinh hang tai snippets", "trinh hang dau snippets"
"hang va java snippets" » "hang java 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: (((("hang va java snippets") or ("trinh hang ca snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang va java snippets") OR ("trinh hang ca snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang va java snippets ) or ( trinh hang ca snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang va java snippets") or ("trinh hang ca snippets"))) or ("locating bug code snippets"))*.