Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
canh trinh » canh tranh, hanh trinh, canh tinh
thong cong » trong cong, thong thong, phong chong
tong cong » trong cong, cong cong, dung cong
thanh pha » thanh phan, thanh pham, thanh pho
trinh va » trinh van, trinh vat, trinh ve
pha cau » phan cau, phap cau, pha cac
ung » cung
dung » dcung

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 va ((ung dung) or (((thong cong) OR (tong cong)))) thanh pha cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - canh trinh va ((ung dung) OR (((thong cong) OR (tong cong)))) thanh pha cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nhanh - canh trinh va ((ung dung) or (((thong cong) OR (tong cong)))) thanh pha cau".
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - canh trinh va ((ung dung) or (((thong cong) OR (tong cong)))) thanh pha cau*.