Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
thanh tung » thanh cong
hoc thien » hoc hien, hoc thieu, hoc thiet
dung cong » dung trong
tung cua » trung cua, tuong cua, dung cua
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
phan dau » hang dau
phan cac » nhan cach, phan lap, phan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien hach - thanh tung cua dung cong san ((phan tu) or (((phan dau) or (phan cac))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - thanh tung cua dung cong san ((phan tu) OR (((phan dau) OR (phan cac)))).
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh tung cua dung cong san ((phan tu) or (((phan dau) or (phan cac))))*.