Perhaps you should try some spelling variations:
thien van » thi van
ban hanh » ban hang
lam duoc » luat duoc, lam thuoc, tao duoc
nam duoc » nam thuoc, da duoc, dat duoc
nang ma » tang ma, sang ma, nang cao
dan cua » dan ca, ban cua, dai cua
van cua » vang cua, ban cua, nan cua
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang ma hoi. thien van ((lam duoc) or (nam duoc)) ban hanh ((van cua) OR (dan cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang ma hoi. thien van ((lam duoc) OR (nam duoc)) ban hanh ((van cua) OR (dan cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang ma hoi. thien van ((lam duoc) or (nam duoc)) ban hanh ((van cua) OR (dan cua)) tre".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang ma hoi. thien van ((lam duoc) or (nam duoc)) ban hanh ((van cua) OR (dan cua)) tre*.