Perhaps you should try some spelling variations:
"hang tam chieu snippets" » "hang tim hieu snippets", "hang nam chien snippets", "hang thi chieu snippets", "thang tam chieu snippets", "hang tham chieu snippets", "hang tai chieu snippets"
"dung java java snippets" » "dung 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: (((("hang tam chieu snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang tam chieu snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang tam chieu snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang tam chieu snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.