Perhaps you should try some spelling variations:
"tho cac ngoc snippets" » "tho cac nuoc snippets", "tho cao ngoc snippets", "tho van ngoc snippets", "cho cac ngoc snippets", "tho ca ngoc snippets", "thong cac ngoc snippets", "tho cac ngoc 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: (((("tho cac ngoc snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tho cac ngoc snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tho cac ngoc snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tho cac ngoc snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.