Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
cau theo » cau thi, cau tao
nang xa » nang x, lang xa, nang ma
vu sach » vu bach, su sach, vu khach
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
vi cau » va cau, ve cau, di cau
ve cam » ve cham, ve cac, ve cai

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

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