Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"python using java snippets" » "python using data snippets"
"chap van dan snippets" » "phap van dan snippets", "chao van dan snippets", "chau van dan snippets", "chap van ban snippets", "chap ban dan snippets", "chap van dao 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: (((("python using java snippets") or ("chap van dan snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("chap van dan snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( chap van dan snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("chap van dan snippets"))) or ("locating bug code slippers"))*.