Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi nhat moi snippets" » "thu nhat moi snippets", "tai nhat moi snippets", "thi nhan moi snippets", "thi nha moi snippets", "thi nhat mpsi snippets", "thi 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: (((("thi 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: (((("thi nhat moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi nhat moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi nhat moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.