Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hieu tinh » lieu tinh, hieu binh, hieu kinh
kieu tinh » lieu tinh, trieu tinh, diep tinh
cua nhung » va nhung
hanh han » hanh nhan, hanh phan, hanh san
cong tac » cong ty
han cua » hang cua, nhan cua, than cua
tac han » tac nhan, tac ha, tac can
han tai » hang tai, nhan tai, van tai

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 (chieu tinh))) or (kieu tinh)) - hanh han cua nhung cong tac han tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((((hieu tinh) OR (chieu tinh))) OR (kieu tinh)) - hanh han cua nhung cong tac han tai.
• Adding a wildcard symbol may retrieve word variants: doc ((((hieu tinh) or (chieu tinh))) or (kieu tinh)) - hanh han cua nhung cong tac han tai*.