Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
nganh cong » nhanh chong, thanh cong
thuat bai » thuat bao, thuyet bai, thuat xay
de phong » den phong, du phong, ve phong
dieu van » hieu van, dieu can, sieu van
cong de » cong da, cong ve, cong dieu
dieu va » lieu va, dien va, hieu va
thong » trong

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) or (thuat bai)) nganh cong de phong ((dieu va) OR (dieu van)) truyen thong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat lanh) OR (thuat bai)) nganh cong de phong ((dieu va) OR (dieu van)) truyen thong.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuat lanh) or (thuat bai)) nganh cong de phong ((dieu va) OR (dieu van)) truyen thong".
• Adding a wildcard symbol may retrieve word variants: ((thuat lanh) or (thuat bai)) nganh cong de phong ((dieu va) OR (dieu van)) truyen thong*.