Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
hieu ve » hieu va, hieu van
cam duc » cao duc, pham duc, nam duoc
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ha hoi » hoa hoi, ha noi, xa hoi
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky dang ha hoi. hieu ve ((cam duc) or (cam xuc)) van hanh ((vi cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky dang ha hoi. hieu ve ((cam duc) OR (cam xuc)) van hanh ((vi cua) OR (dai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky dang ha hoi. hieu ve ((cam duc) or (cam xuc)) van hanh ((vi cua) or (dai cua)) tre*.