Perhaps you should try some spelling variations:
thuat lanh » thuat san
thuat lap » thuat xay, thuat bai, thuat bao
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
va tinh » may tinh
di cua » dai cua, doi cua, de cua
va cao » va cac, va co, va dao
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuat lanh) OR (thuat lap)) ky nang x hoi. hieu va cao su ((va hanh) or (va tinh)) di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat lanh) OR (thuat lap)) ky nang x hoi. hieu va cao su ((va hanh) OR (va tinh)) di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuat lanh) OR (thuat lap)) ky nang x hoi. hieu va cao su ((va hanh) or (va tinh)) di cua te".
• Adding a wildcard symbol may retrieve word variants: ((thuat lanh) OR (thuat lap)) ky nang x hoi. hieu va cao su ((va hanh) or (va tinh)) di cua te*.