Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
chieu tinh » trieu tinh, lieu tinh, chau tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh manh » hanh mang, lanh manh, hoang manh
manh cua » doanh cua, ban cua
cong tan » cong tac, cong san, cong ty
san ban » sang ban, van ban, can ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - hanh manh cua cong ((cong thanh) OR (cong tan)) san ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu tinh - hanh manh cua cong ((cong thanh) OR (cong tan)) san ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh manh cua cong ((cong thanh) OR (cong tan)) san ban*.