Perhaps you should try some spelling variations:
tran hoang » tran hong, quan hoang, tran quang
tran dang » tran quang, tranh hang, tran van
thai cua » than cua, tai cuc, tri cua
vu khach » vu khanh, vu khac, vay khach
cac duc » cac du, cao duc, cac dac
vu sach » vu bach, su sach
hieu ve » hieu va, hieu van
anh xa » anh xay, canh xa, anh va
ve cac » va cac, vien cac
y anh » ly anh, ty anh, ky anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) OR (vu khach)) y anh xa hoi. hieu ve cac duc ((tran dang) or (tran hoang)) thai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khach)) y anh xa hoi. hieu ve cac duc ((tran dang) OR (tran hoang)) thai cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu khach)) y anh xa hoi. hieu ve cac duc ((tran dang) or (tran hoang)) thai cua vat".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (vu khach)) y anh xa hoi. hieu ve cac duc ((tran dang) or (tran hoang)) thai cua vat*.