Perhaps you should try some spelling variations:
"phung thi trinh slippers" » "phung tho trinh slippers", "phung thi thanh slippers", "phung thi minh slippers", "huong thi trinh slippers", "phung ho trinh slippers", "phung thi trinh slippery", "phung thi trinh grippers"
"using a code snippets" » "using a core snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code 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 a code snippets") or ("phung thi trinh slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("phung thi trinh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( phung thi trinh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("phung thi trinh slippers"))) or ("locating bug code snippets"))*.