Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho nhat de snippets" » "cho nha de snippets", "cho nhan de snippets", "cho phat de snippets", "cho nhat ve snippets", "cho nhat le snippets", "cho chat deo 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: (((("cho nhat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho nhat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho nhat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho nhat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.