Perhaps you should try some spelling variations:
"trinh hanh va snippets" » "trinh thanh va snippets", "trinh han va snippets", "trinh anh va snippets", "trinh hang va snippets", "trinh hanh vi snippets"
"dung cac che snippets" » "luong cac che snippets", "dung cho che snippets", "dung tai che snippets", "dung cac he snippets", "dung cac chien snippets", "dung cac chat 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: (((("trinh hanh va snippets") or ("dung cac che snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh hanh va snippets") OR ("dung cac che snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh hanh va snippets ) or ( dung cac che snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh hanh va snippets") or ("dung cac che snippets"))) or ("locating bug code snippets"))*.