Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
tieu tinh » trieu tinh, tieu trinh, lieu tinh
nhan hoat » nhan hoa, nhanh hoan, nhan vat
han hoac » phan hoan, van hoa, van hoc
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - hanh ((han hoac) OR (nhan hoat)) khong cong tan toan tap~".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - hanh ((han hoac) OR (nhan hoat)) khong cong tan toan tap*.