Perhaps you should try some spelling variations:
tong thong » thong thong, dong thong, cong thong
hien hanh » dieu hanh
phong cua » phong chua, thong cua, phong ngua
thong dan » thong van, tuong dan, thong den
cua tong » cua cong, cua dong, cua nong
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien hanh - khanh phong cua tong thong dan khan cap~.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - khanh phong cua tong thong dan khan cap*.