Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu dinh le snippets" » "thu minh le snippets", "chu dinh le snippets", "thu kinh le snippets", "thu dinh ve snippets", "thu dinh ly snippets", "thu dinh ket 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: (((("thu dinh le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu dinh le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu dinh le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu dinh le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.