Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
canh trinh » canh tranh, hanh trinh, canh tinh
thang long » thanh cong
trinh han » trinh quan
han thang » van thang, han chang, nhanh thang
long tac » cong tac, dong tac, luong tai
tac phat » tac pham, tam phat, tan phat
phat cac » phan cac, pha cac, phap cac

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 thang long tac phat cac~.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - canh trinh han thang long tac phat cac*.