Perhaps you should try some spelling variations:
chien chong » thien cong
duong cong » dung cong, luong cong, duong trong
hoc chien » hoc hien, hoach chien, hoc chuyen
hanh tang » hanh trang, hanh mang, hanh tung
cua duong » cua dong, cua huong, qua duong
anh tang » anh bang, anh dang, anh nang
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chien chong - ((hanh tang) or (anh tang)) cua duong cong tan ((toan cao) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chien chong - ((hanh tang) OR (anh tang)) cua duong cong tan ((toan cao) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc chien chong - ((hanh tang) or (anh tang)) cua duong cong tan ((toan cao) or (van ban))*.