Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
van hanh » van thanh, ban hanh, van anh
hanh di » hanh vi, hanh de, hang di
cac dac » cac dan, cac dai, cac bac
cac duc » cac du, cao duc, cac nuoc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
thu ban » thu hang
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuat san) or (thu ban)) ky nang xa hoi. hieu ve ((cac duc) or (cac dac)) van hanh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat san) OR (thu ban)) ky nang xa hoi. hieu ve ((cac duc) OR (cac dac)) van hanh di cua tu.
• Adding a wildcard symbol may retrieve word variants: ((thuat san) or (thu ban)) ky nang xa hoi. hieu ve ((cac duc) or (cac dac)) van hanh di cua tu*.