Perhaps you should try some spelling variations:
te sach » toc sach
ve cham » va cham, ve chat, vu cham
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
cua duc » cua tuc, cua nuoc, cua quoc
y hang » ly hang, ty hang, yu hang
va hoi » xa hoi, va hoc, va hoa
ve cam » ve cac, va cam, ve cai
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y hang va hoi. hieu ((ve cam) or (ve cham)) truc va hanh vi cua duc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y hang va hoi. hieu ((ve cam) OR (ve cham)) truc va hanh vi cua duc.
• Adding a wildcard symbol may retrieve word variants: te sach y hang va hoi. hieu ((ve cam) or (ve cham)) truc va hanh vi cua duc*.