Perhaps you should try some spelling variations:
sanh trong » sinh trong, anh trong, hanh trong
trong cuoc » trong cac
tranh quoc » trinh quoc, tranh cuoc, tranh duoc
tran quoc » trung quoc, han quoc, tran duc
cuoc thi » nuoc thai, quoc thai, cuoc khoi
tu sanh » tu hanh, tu manh, tu san
tu sach » thu sach, su sach, te sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu sanh trong cuoc thi đong luc ) or ( tu sach ((tranh quoc) OR (tran quoc)) khoi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sanh trong cuoc thi đong luc ) OR ( tu sach ((tranh quoc) OR (tran quoc)) khoi đong luc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tu sanh trong cuoc thi đong luc ) or ( tu sach ((tranh quoc) OR (tran quoc)) khoi đong luc ))".
• Adding a wildcard symbol may retrieve word variants: (( tu sanh trong cuoc thi đong luc ) or ( tu sach ((tranh quoc) OR (tran quoc)) khoi đong luc ))*.