Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau hoang du snippets" » "cam hoang du snippets", "cap hoang du snippets", "cau hoa du snippets", "cau hoang duy snippets", "cau hoang duc snippets", "cau hoang de 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: (((("cau hoang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau hoang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau hoang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau hoang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.