Perhaps you should try some spelling variations:
"locating bung code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"mo viet cho snippets" » "mo viec cho snippets", "mo viet co snippets", "mo viet theo snippets", "mon viet cho snippets", "so viet cho snippets", "o viet cho 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: (((("mo viet cho 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 viet cho snippets") OR ("python using java snippets"))) OR ("locating bung code snippets")).
• Removing quotes may allow a broader search: (((( mo viet cho snippets ) or ( python using java snippets ))) or ( locating bung code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mo viet cho snippets") or ("python using java snippets"))) or ("locating bung code snippets"))*.