Perhaps you should try some spelling variations:
tang van » dang van, hoang van, trong van
cham luc » cham soc, nhan luc, cham cuu
hieu vu » hieu va, hieu ve, hieu su
cua tre » cuu tre, cua triet, dua tren
danh de » hanh de, dan de, dang de
van hoi » van hoa, van hoc, van hoe
va danh » va dinh, va dan, va hanh
vu cham » va cham, vu kham, tu cham
luc va » duc va, tuc va, loc va
sac ky » cac ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((sai ky) OR (sac ky)) tang van hoi. hieu vu cham luc va danh de ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sai ky) OR (sac ky)) tang van hoi. hieu vu cham luc va danh de ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sai ky) OR (sac ky)) tang van hoi. hieu vu cham luc va danh de ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: vu ((sai ky) OR (sac ky)) tang van hoi. hieu vu cham luc va danh de ((cua tre) or (cua te))*.