Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
tham thuc » nham thuc, pham thuc, tam thuc
ban thanh » ban hang
ban hanh » ban hang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
vi cua » vai cua, di cua
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: ((tu cac) or (thuat lanh)) ky nang xa hoi. hieu va tham thuc ((ban thanh) OR (ban hanh)) vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (thuat lanh)) ky nang xa hoi. hieu va tham thuc ((ban thanh) OR (ban hanh)) vi cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cac) or (thuat lanh)) ky nang xa hoi. hieu va tham thuc ((ban thanh) OR (ban hanh)) vi cua tu".
• Adding a wildcard symbol may retrieve word variants: ((tu cac) or (thuat lanh)) ky nang xa hoi. hieu va tham thuc ((ban thanh) OR (ban hanh)) vi cua tu*.