Perhaps you should try some spelling variations:
luyen tre » luyen tri, huyen tren, tuyen tren
ban thanh » ban hanh, ban hang
nang cau » nang cao, hang cau, nang dau
thanh vi » hanh vi, thanh va, thanh ve
luu tre » luu tru, cuu tre, luy tre
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
sac ky » cac ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sai ky) OR (sac ky)) nang cau hoi. hieu ve cam xuc ban thanh vi ((luu tre) or (luyen tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sai ky) OR (sac ky)) nang cau hoi. hieu ve cam xuc ban thanh vi ((luu tre) OR (luyen tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sai ky) OR (sac ky)) nang cau hoi. hieu ve cam xuc ban thanh vi ((luu tre) or (luyen tre))*".