Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thuat lap » thuat lanh, thuat xay, thuat bai
van hanh » van thanh, ban hanh, van anh
nang xa » nang x, lang xa, nang ma
cac duc » cac du, cao duc, cac dac
duc van » duc va, duc tan, duc manh
v nang » va nang, vu nang, van nang
vi cua » vai cua
di cua » dai cua, doi cua, de 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 sach) or (thuat lap)) v nang xa hoi. lieu va cac duc van hanh ((vi cua) OR (di cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat sach) OR (thuat lap)) v nang xa hoi. lieu va cac duc van hanh ((vi cua) OR (di cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuat sach) or (thuat lap)) v nang xa hoi. lieu va cac duc van hanh ((vi cua) OR (di cua)) te".
• Adding a wildcard symbol may retrieve word variants: ((thuat sach) or (thuat lap)) v nang xa hoi. lieu va cac duc van hanh ((vi cua) OR (di cua)) te*.