Perhaps you should try some spelling variations:
duoc tren » nuoc tren, thuoc tren, dung tren
nang mai » nang ma, nang tai, lang mai
tai duoc » tao duoc, tan duoc, mai duoc
hang tai » hang va, dung tai
ve cham » va cham, ve chat, vu cham
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
mai hoi » mai khoi, dai hoi, lai hoi
xuc va » tuc va, luc va, xac va
ve cam » ve cac, va cam, 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: vu sach ky nang mai hoi. hieu ((ve cam) OR (ve cham)) ((xuc va) or (duc va)) hang tai duoc tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang mai hoi. hieu ((ve cam) OR (ve cham)) ((xuc va) OR (duc va)) hang tai duoc tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang mai hoi. hieu ((ve cam) OR (ve cham)) ((xuc va) or (duc va)) hang tai duoc tren".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang mai hoi. hieu ((ve cam) OR (ve cham)) ((xuc va) or (duc va)) hang tai duoc tren*.