Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
va hanh » va thanh, va danh, ban hanh
luu tre » luu tru, cuu tre, luy tre
va cam » va cham, va cac, va cao
vi luu » vi lua
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: ((tu sach) or (thuat lanh)) ky nang x hoi. lieu va cam xuc ((va hanh) OR (van hanh)) vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat lanh)) ky nang x hoi. lieu va cam xuc ((va hanh) OR (van hanh)) vi luu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thuat lanh)) ky nang x hoi. lieu va cam xuc ((va hanh) OR (van hanh)) vi luu tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat lanh)) ky nang x hoi. lieu va cam xuc ((va hanh) OR (van hanh)) vi luu tre*.