Perhaps you should try some spelling variations:
thien hach » thien thanh
hien hanh » dieu hanh
van hanh » van thanh, ban hanh, van anh
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, va hanh
so sac » so sach, so dac
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sac ky nang xa hoi. hieu ((thien hach) OR (hien hanh)) nuoc ((va danh) or (van hanh)) vi cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sac ky nang xa hoi. hieu ((thien hach) OR (hien hanh)) nuoc ((va danh) OR (van hanh)) vi cua cu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sac ky nang xa hoi. hieu ((thien hach) OR (hien hanh)) nuoc ((va danh) or (van hanh)) vi cua cu*".