Perhaps you should try some spelling variations:
"dan thi trinh snippets" » "dan tho trinh snippets", "dan thi thanh snippets", "dan thi minh snippets", "dang thi trinh snippets", "tran thi trinh snippets", "dinh thi trinh snippets", "dan thi trinh slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("python using a snippets") or ("dan thi trinh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using a snippets") OR ("dan thi trinh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using a snippets ) or ( dan thi trinh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using a snippets") or ("dan thi trinh snippets"))) or ("locating bug code snippets"))*.