Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
cap nhung » cam nhung, vap nhung, dap nhung
chi xanh » chi anh, chi danh, chi hanh
tung cap » trung cap, cung cap, thong cap
cong san » cong tac
than tap » han tap, phan tap, than cap
toan tap » toan ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - thanh tung cap nhung cong san ((than tap) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - thanh tung cap nhung cong san ((than tap) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - thanh tung cap nhung cong san ((than tap) or (toan tap))*.