Perhaps you should try some spelling variations:
thien van » thi van
trinh vat » trinh van, trinh luat, sinh vat
trinh vi » trinh ve, trinh viet, trinh van
trinh va » trinh van, trinh ve, trinh han
thu sac » thu sach, thu san, thu xac
nang ma » tang ma, sang ma, nang cao
van cac » van hac, van cau, van bac
cac dat » cac dan, cai dat, cac dai
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sac ky nang ma hoi. thien van cac dat va ((trinh vi) or (((trinh va) OR (trinh vat)))) cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky nang ma hoi. thien van cac dat va ((trinh vi) OR (((trinh va) OR (trinh vat)))) cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sac ky nang ma hoi. thien van cac dat va ((trinh vi) or (((trinh va) OR (trinh vat)))) cua vat".
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang ma hoi. thien van cac dat va ((trinh vi) or (((trinh va) OR (trinh vat)))) cua vat*.