Perhaps you should try some spelling variations:
"trong tao trinh snippets" » "trong tan trinh snippets", "trong tho trinh snippets", "trong tai trinh snippets", "trong tao tinh snippets", "trong giao trinh snippets", "trong tao trinh slippers"
"dung cho code snippets" » "dung cho cong snippets", "dung cfd code snippets", "dung cho con snippets", "dung cho code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("trong tao trinh snippets") or ("dung cho code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong tao trinh snippets") OR ("dung cho code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong tao trinh snippets ) or ( dung cho code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong tao trinh snippets") or ("dung cho code snippets"))) or ("locating bug code snippets"))*.