Perhaps you should try some spelling variations:
"locating bung code snippets" » "locating bug code snippets", "locating bung code slippers"
"using java code snippets" » "using data code snippets", "using java code slippers"
"van danh viet snippets" » "van anh viet snippets", "van ninh viet snippets", "van nang viet snippets", "van doanh viet snippets", "van hanh viet snippets", "van danh viet 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: (((("using java code snippets") or ("van danh viet snippets"))) or ("locating bung code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("van danh viet snippets"))) OR ("locating bung code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( van danh viet snippets ))) or ( locating bung code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("van danh viet snippets"))) or ("locating bung code snippets"))*.