Perhaps you should try some spelling variations:
"chua dan trinh snippets" » "chua dan tinh snippets", "chua van trinh snippets", "chua hanh trinh snippets", "cua dan trinh snippets", "chua dac trinh snippets", "chua dau trinh snippets", "chua dan 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: (((("chua dan trinh snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chua dan trinh snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chua dan trinh snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chua dan trinh snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.