Perhaps you should try some spelling variations:
"locating bung code snippets" » "locating bug code snippets", "locating bung code slippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"mo thi luan snippets" » "mo thi lan snippets", "mo thi xuan snippets", "mo thi loan snippets", "do thi luan snippets", "vo thi luan snippets", "mo tai luan snippets", "mo thi luan slippers"

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: (((("mo thi luan snippets") or ("python using java snippets"))) or ("locating bung code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mo thi luan snippets") OR ("python using java snippets"))) OR ("locating bung code snippets")).
• Removing quotes may allow a broader search: (((( mo thi luan snippets ) or ( python using java snippets ))) or ( locating bung code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mo thi luan snippets") or ("python using java snippets"))) or ("locating bung code snippets"))*.