Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"vi trung low slippers" » "vi trung long slippers", "vi truong lon slippers", "vi truong lop slippers", "va trung low slippers", "viet trung low slippers", "vien trung low slippers", "vi trung low slippery", "vi trung low grippers"
"locating bug code snippets" » "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: (((("using java java snippets") or ("vi trung low slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java snippets") OR ("vi trung low slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java java snippets ) or ( vi trung low slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") or ("vi trung low slippers"))) or ("locating bug code snippets"))*.