Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cap nhat moi snippets" » "dai nhat moi snippets", "dap nha moi snippets", "hay nhat moi snippets", "cap nha moi snippets", "cap nhat mpsi snippets", "cap nhap mon 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: (((("cap nhat moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cap nhat moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cap nhat moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cap nhat moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.