Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac mo canh snippets" » "cac bo canh snippets", "cac do canh snippets", "cac mo danh snippets", "cac mon canh snippets", "cac moi canh snippets", "cac co canh 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: (((("cac mo canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac mo canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac mo canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac mo canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.