Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
vu mach » vu bach, vu manh, vu sach
van lam » van nam
van cam » van nam, van cau, van dam
lang xa » lang ha, dang xay, lang van
xu lang » cu lang, tu lang, xu dang
vi mach » tim mach
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va
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: ((vu mach) OR (vi mach)) xu lang xa hoi. hieu ((van cam) or (van lam)) luc va thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu mach) OR (vi mach)) xu lang xa hoi. hieu ((van cam) OR (van lam)) luc va thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu mach) OR (vi mach)) xu lang xa hoi. hieu ((van cam) or (van lam)) luc va thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((vu mach) OR (vi mach)) xu lang xa hoi. hieu ((van cam) or (van lam)) luc va thanh vi cua tre*.