Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
nang xa » nang x, lang xa, nang ma
vai cua » dai cua, hai cua, lai cua
te cac » tu cac, te cao, de cac
ve cac » va cac, vien cac
nam da » nam dan, nam a, nam va
da ban » dia ban, dua ban, day ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) OR (ve cac)) ky nang xa hoi. hieu van nam da ban thanh vai cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) OR (ve cac)) ky nang xa hoi. hieu van nam da ban thanh vai cua vat".
• Adding a wildcard symbol may retrieve word variants: ((te cac) OR (ve cac)) ky nang xa hoi. hieu van nam da ban thanh vai cua vat*.