Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
canh trinh » canh tranh, hanh trinh, canh tinh
chang cong » hang cong, chong cong, thanh cong
trinh han » trinh quan
han chang » san chang, phan chung, thon chang
phat cac » phan cac, pha cac, phap cac
ty phat » te phat, tu phat, tam phat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien nhanh - canh trinh han chang cong ty phat cac~.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - canh trinh han chang cong ty phat cac*.