Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
chu thuc » chua thuc, cuu thuc, thu thuc
vat hanh » vat thanh, van hanh, va hanh
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
van chu » van chi, van phu, van cau
te cua » le 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: ((tu sach) or (su sach)) ky nang xa hoi. hieu van chu thuc vat hanh ((te cua) OR (tue cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang xa hoi. hieu van chu thuc vat hanh ((te cua) OR (tue cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky nang xa hoi. hieu van chu thuc vat hanh ((te cua) OR (tue cua)) te".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang xa hoi. hieu van chu thuc vat hanh ((te cua) OR (tue cua)) te*.