Perhaps you should try some spelling variations:
"kha dung van snippets" » "khoa dung van snippets", "khao dung van snippets", "nha dung van snippets", "kha duong van snippets", "kha dung va snippets", "kha dang van snippets", "kha dung van slippers"
"using low java snippets" » "using low java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("kha dung van snippets") or ("using low java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kha dung van snippets") OR ("using low java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kha dung van snippets ) or ( using low java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kha dung van snippets") or ("using low java snippets"))) or ("locating bug code snippets"))*.