Perhaps you should try some spelling variations:
khong cang » thong cong, hong bang, khong dung
cua khong » hua khong, cua phuong, cua thuong
lieu tinh » trieu tinh, diep tinh, bien tinh
tac thanh » bac thanh, cac thanh, tcc thanh
thanh lap » thanh san, phan lap, thanh hai
anh sang » lanh sang, anh bang, anh nang
anh dang » anh dong, anh dung, anh bang
cang tac » cong tac, canh tac, sang tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: du lieu tinh - ((anh sang) or (anh dang)) cua khong cang tac thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: du lieu tinh - ((anh sang) OR (anh dang)) cua khong cang tac thanh lap.
• Adding a wildcard symbol may retrieve word variants: du lieu tinh - ((anh sang) or (anh dang)) cua khong cang tac thanh lap*.