Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
van pham » san pham, van phan, van phat
va thanh » gia thanh, ban thanh, va tinh
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
nang ma » tang ma, sang ma, nang cao
vai cua » dai cua, hai cua, lai cua
san ky » sang ky, van ky, dan ky
ma hoi » mai hoi, xa hoi, ma hoa
vi 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: thuat san ky nang ma hoi. hieu van pham duc ((van hanh) or (va thanh)) ((vi cua) OR (vai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ky nang ma hoi. hieu van pham duc ((van hanh) OR (va thanh)) ((vi cua) OR (vai cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat san ky nang ma hoi. hieu van pham duc ((van hanh) or (va thanh)) ((vi cua) OR (vai cua)) te*".