Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
nang xa » nang x, lang xa, nang ma
vai cua » dai cua, hai cua, lai cua
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
ve nam » he nam, va nam, te nam
le nam » ly nam, he nam, le na
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: vu sac ky nang xa hoi. hieu ((ve nam) or (le nam)) thuc dan hanh ((vi cua) OR (vai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang xa hoi. hieu ((ve nam) OR (le nam)) thuc dan hanh ((vi cua) OR (vai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky nang xa hoi. hieu ((ve nam) or (le nam)) thuc dan hanh ((vi cua) OR (vai cua)) te".
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang xa hoi. hieu ((ve nam) or (le nam)) thuc dan hanh ((vi cua) OR (vai cua)) te*.