Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thi chieu » thi chien, thi hieu, theo chieu
hoc thieu » toc thieu, hoc hien
tan khoan » toan khoan, tai khoan, tao khoang
khoan cam » khoa cam, khoan va, phan cam
ho chieu » theo chieu, doi chieu, mot chieu
tranh va » tranh van, trang va, trinh va
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (((ho chieu) or (thi chieu)))) xanh - canh tranh va nhung cong tan khoan cam~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (((ho chieu) OR (thi chieu)))) xanh - canh tranh va nhung cong tan khoan cam.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (((ho chieu) or (thi chieu)))) xanh - canh tranh va nhung cong tan khoan cam*.