Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
dinh vai » dinh van, dinh vi, dinh va
lanh ky » hanh ky, nganh ky, thanh ky
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
ve cam » ve cham, ve cac, va cam
xuc va » tuc va, luc va, xac va
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat lanh ky ((mang may) or (sang ma)) hoa. hieu ve cam ((xuc va) OR (duc va)) dinh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh ky ((mang may) OR (sang ma)) hoa. hieu ve cam ((xuc va) OR (duc va)) dinh vai cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh ky ((mang may) or (sang ma)) hoa. hieu ve cam ((xuc va) OR (duc va)) dinh vai cua tu*".