Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
luu truc » luu tru, cau truc, cuu thuc
ty nang » ky nang, ty hang, ly nang
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
va hanh » van hanh, va thanh, va danh
vi luu » vi lua
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai

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 ((ty nang) or (ty xang)) ((x hoi) OR (o hoi)). hieu ve pham duc va hanh vi luu truc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh ((ty nang) OR (ty xang)) ((x hoi) OR (o hoi)). hieu ve pham duc va hanh vi luu truc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh ((ty nang) or (ty xang)) ((x hoi) OR (o hoi)). hieu ve pham duc va hanh vi luu truc".
• Adding a wildcard symbol may retrieve word variants: thuat lanh ((ty nang) or (ty xang)) ((x hoi) OR (o hoi)). hieu ve pham duc va hanh vi luu truc*.