Perhaps you should try some spelling variations:
hoa doanh » toan doanh, hoa dan
hieu van » hieu va, thien van, lieu va
van cam » van nam, van lam, van cau
van cua » vang cua, ban cua, dan cua
trai ky » thai ky
nang ma » tang ma, sang ma, nang cao
cam duc » cam xuc, cao duc, pham duc
va dan » ca dan, va dao, va dau
tai ky » thai ky, sai ky, dai ky
ma hoi » mai hoi, xa hoi, ma hoa
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: te ((tai ky) OR (trai ky)) nang ma hoi. hieu van cam duc ((hoa doanh) or (va dan)) van cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((tai ky) OR (trai ky)) nang ma hoi. hieu van cam duc ((hoa doanh) OR (va dan)) van cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((tai ky) OR (trai ky)) nang ma hoi. hieu van cam duc ((hoa doanh) or (va dan)) van cua te*".