Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
cam truong » cac truong, lam truong, cao truong
hieu tinh » chieu tinh, lieu tinh, hieu binh
kieu tinh » lieu tinh, trieu tinh, diep tinh
tranh cam » trinh cam, tranh cac, tranh cai
cong dan » cong san, cong tan, huong dan
ca cau » cua cau, cac cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu tinh) or (kieu tinh)) - canh tranh cam truong cong dan ca cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu tinh) OR (kieu tinh)) - canh tranh cam truong cong dan ca cau.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu tinh) or (kieu tinh)) - canh tranh cam truong cong dan ca cau*.