Perhaps you should try some spelling variations:
thanh cua » tranh cua, than cua, hanh cua
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
cam luc » cam xuc
cau luc » cau phuc
y nang » ky nang, ly nang, v nang
cua va » cua vat, chua va, cua van
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y nang xa hoi. hieu van ((cam luc) or (((cau luc) OR (cau truc)))) va thanh cua va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang xa hoi. hieu van ((cam luc) OR (((cau luc) OR (cau truc)))) va thanh cua va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang xa hoi. hieu van ((cam luc) or (((cau luc) OR (cau truc)))) va thanh cua va thiet".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang xa hoi. hieu van ((cam luc) or (((cau luc) OR (cau truc)))) va thanh cua va thiet*.