Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
ngung dang » nguong dan, dung dang, nhung danh
hanh trung » thanh trung, hanh trang, manh trung
trung cham » trang cham, trong cham, trung tam
hieu quan » hieu qua, lieu quan, thien quan
hanh tinh » nhanh tinh, thanh tinh, canh tinh
dang hanh » dang thanh, ban hanh, dang van
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu quan - ((hanh tinh) OR (hanh trinh)) chat ngung dang hanh trung cham~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu quan - ((hanh tinh) OR (hanh trinh)) chat ngung dang hanh trung cham".
• Adding a wildcard symbol may retrieve word variants: ho hieu quan - ((hanh tinh) OR (hanh trinh)) chat ngung dang hanh trung cham*.