Perhaps you should try some spelling variations:
"locating bung code snippets" » "locating bug code snippets"
"using java code snippets" » "using data code snippets"
"van tuan toan snippets" » "van xuan toan snippets", "van tuan hoan snippets", "van thanh toan snippets", "van quan toan snippets", "van ban toan snippets", "anh tuan toan 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: (((("using java code snippets") or ("van tuan toan 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 tuan toan snippets"))) OR ("locating bung code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( van tuan toan snippets ))) or ( locating bung code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("van tuan toan snippets"))) or ("locating bung code snippets"))*.