Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mo thong que snippets" » "mo thong qua snippets", "mo thong quan snippets", "mo thong ke snippets", "mo phong que snippets", "bo thong que snippets", "mo trong que 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: (((("mo thong que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mo thong que snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mo thong que snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mo thong que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.